OPINION
Plaintiff-Appellee Latana Slayton sued Defendant-Appellant Ohio Department of Youth Services (“DYS”), asserting that it violated her right to be free from gender discrimination under Title VII of the Civil Rights Act of 1964, 42 U.S.C. § 2000e (West 1999). Slayton claimed inter alia that DYS maintained a sexually hostile work environment and that it terminated her because of her gender. After trial, the jury returned a $125,000 judgment for Slayton on the hostile environment claim, but ruled in DYS’ favor on the gender discrimination claim. DYS then moved for a new trial, or, in the alternative, remitti-tur. The district court denied these motions, and DYS now appeals. We agree with the district court’s judgment and AFFIRM it in all respects.
I.
On December 26, 1995, DYS hired Slay-ton to work as a juvenile corrections officer at the Indian River School (“IRS”), a maximum security institution for young, male lawbreakers. IRS housed young people who had committed a wide range of serious felony offenses, including homicide. Slayton was aware of the environment in which she would be working, and accepted the job with full knowledge that it entailed continuous interaction with criminal offenders.
*674 Slayton’s position required that she complete a probationary period before graduating to regular status. In early January 1996, Slayton began a several week training period in which she learned various IRS procedures, including its directives on the limited use of physical force against inmates. After this training period, Slay-ton was assigned to the “E-Unit.” Because of Slayton’s limited seniority, however, she was often re-assigned to other units. When on E-unit, Slayton worked alongside Corry Appline, a male fellow corrections officer. Initially, Slayton had a “working relationship” with Appline. However, in late February and early March, Slayton’s professional relationship with Appline degenerated. Slayton contended that Appline began “horse playing” and “wrestling around” with the inmates. Appline supplied the inmates with snacks, magazines, and sexually-explicit CDs. Slayton further testified that Appline began playing, often for the duration of an entire shift, lewd music that featured lyrics including “f**k the bi**h” and “me and my bi**h.”
Additionally, Appline played music videotapes for the inmates. In Slayton’s view, these videos depicted an array of sexually provocative conduct, including risque “grinding” and simulated erotic acts. Moreover, Appline often led the inmates in performing dances to the videos. During these dances, performed in front of both Slayton and the inmates, Appline touched his “private parts,” his head, his chest, and “in between his leg[s].” J.A. at 229. Slay-ton testified that she approached Appline more than twenty times about his behavior, and that he merely replied “too bad.” Slayton further asserted that, sometime in March 1996, she reported this behavior to her immediate supervisor, Rose Davidson.
Slayton also alleged that Appline’s inappropriate conduct extended to other areas as well. She asserted that he encouraged the youth to drop their towels when she was on shower duty. While she does not contend that he directly instigated such activity, she does state that Appline joked with the kids about this behavior. According to Slayton, Appline laughed even more boisterously when inmates dropped their towels while their penises were erect. Along these same lines, Slayton also alleged that, on one occasion, Appline intentionally sent her to check on an inmate who he knew was masturbating. Slayton believes that Appline intentionally sent her to find the inmate in that activity because Appline was already laughing in her direction by the time she exited the inmate’s cell. Finally, on another occasion, Slayton contends that in response to an inmate’s question as to why Slayton was so mean, Appline responded, “maybe she’s on her period[;] I don’t know what her problem is.” J.A. at 249.
In Slayton’s eyes, the inmates became increasingly hostile towards her because of Appline’s conduct. The inmates began referring to Slayton in a variety of derogatory terms, including “ho ass b**ch” and “skinny[ ] chicken head.” Indeed, Slayton contended that Appline directly undermined her ability to perform her job by informing the inmates: “[Djon’t worry about that b**ch; she’s not going to be here that much longer; she’s going to be fired.” J.A. at 243.
After her futile attempts to seek redress from supervisor Davidson, Slayton contends that she spoke with a number of other INS supervisors, including Kirk Braithwaite, the unit administrator, and Linda Bess, the contemporaneous superintendent of IRS. Slayton testified that she began informing Braithwaite of this behavior in March 1996, and that he stated that he would “check into” Appline’s behavior. While Braithwaite could not recall meeting with Slayton in March, his notes indicated that by May 1996, he was aware of Slay-ton’s concerns with Appline’s behavior. Despite Slayton’s direct entreaties, Braith-waite did not promptly report Appline’s conduct to anyone or further investigate Slayton’s claims. Slayton’s contacts with Bess met a similar fate, as Bess merely *675 stated that she would “look into” the situation.
On March 15, 1996, around the same time that Appline’s conduct intensified, Slayton allegedly slapped an inmate who shouted profanities at her. The DYS inspector’s office conducted an investigation and issued a report on May 17, 1996. The report found that Slayton had unnecessarily used physical force, that she had altered her description of the incident several times, and that she acted negligently in failing to adequately subdue the inmate. The report recommended that DYS take “appropriate administrative action” in response to this incident. 1
On June 20, 1996, DYS terminated Slay-ton on the purported basis that she inappropriately used physical force during the March 15 incident. Slayton responded by filing an administrative complaint with DYS, alleging that she had been sexually harassed throughout her employment. When those efforts failed to bear fruit, Slayton filed her Title VII complaint in federal court. Slayton alleged inter alia that DYS fired her because of her gender and that it maintained a hostile work environment. The district court granted DYS partial summary judgment on a claim not raised on appeal, but denied summary judgment on Slayton’s discrimination and hostile environment claims. During trial, DYS moved for directed verdicts at the close of each side’s ease, asserting' that Slayton’s allegations supported neither a discrimination nor hostile environment finding. The district court denied these motions, and the jury returned a $125,000 verdict for Slayton on her hostile work environment claim, but ruled in DYS’ favor on her gender discrimination claim.
DYS then moved for a new trial, or remittitur in the alternative, contending principally that the district court improperly allowed lay opinion testimony, and that it should not be liable under Title VII when a hostile work environment is created by inmate conduct. Slayton simultaneously moved for reinstatement to her position at IRS. The district court denied a new trial and remittitur, and granted Slay-ton’s motion for reinstatement. In granting reinstatement, the district court noted that although the jury found that DYS had not terminated Slayton on the basis of gender, it nevertheless found — -in an interrogatory — that the sexually hostile environment adversely affected her performance. On appeal, DYS challenges the district court’s denial of its directed verdict motions, the denial of its new trial motion, and the denial of remittitur. DYS also appeals the grant of Slayton’s reinstatement motion
II.
A.
The denial of a new trial motion “should be reversed only on the showing of an abuse of discretion.”
Cathey v. JohnsManville Sales Corp.,
*676 Bess then stated that DYS would employ a third party to investigate the claims. At that point, the district court asked Bess to presume that the allegations had been established, and to consider whether an investigator would be necessary. After Bess twice reiterated the presumption that the court wanted her to draw, the court emphasized:
Well, it’s been determined now. Hypothesize that the plaintiffs testimony is true. In your view does that constitute under the terms of your policy, the state’s policy, does that constitute sexual harassment in the workplace?
J.A. at 368. Bess replied, “[according to our policy, yes; it would be.” Id. After the district court’s exchange with Bess, it instructed the jury that its “instructions [were] coming,” that it should not prematurely evaluate the evidence, and that even if the jury concluded that “an action constitutes quote sexual harassment [, it] does not necessarily mean that the plaintiff wins.” J.A. at 368-369. DYS contends that the above exchange, including the Braithwaite testimony, “irreparably damaged” its ability to defend itself against Slayton’s suit. Specifically, DYS avers that this purported lay opinion testimony embraced a primary issue to be decided by the jury, and that the court’s questioning of Bess constituted impermissible vouching for the credibility of Slayton’s claims.
We are not convinced by DYS’ claims. First, the district court clearly did not vouch for the credibility of Slayton’s claims. The court merely, and explicitly, asked Bess to “hypothesize” that Slayton’s allegations were true and to offer her conclusion on whether that conduct constituted “sexual harassment” under department policy. By stating “what if it’s established ...” and “hypothesize,” the district court patently asked Bess to respond to a hypothetical, and certainly was not vouching for the verity of Slayton’s claims. Further, the district court’s instruction re-emphasized that the jury should not draw any premature inferences.
DYS’ evidentiary claim on the admission of Bess’ and Braithwaite’s testimony on “sexual harassment” under department policy presents a closer question. Courts should generally exclude inquiries that ask non-expert witnesses to pontificate upon legal questions.
Torres v. County of Oakland,
This case is distinct from the Torres/Mitroff line of cases because, here, the internal policy clearly formed the predicate of both Bess’ and Braithwaite’s testimony. The pertinent portions of Bess’ testimony deal exclusively with her opinions on the applicability of internal policy to Appline’s conduct. At no point did the district court or counsel refer to Title VII liability or standards during this questioning. Braithwaite’s letter clearly and expressly addressed internal DYS policy, and even when Bess assented to the district court’s query on whether Appline’s conduct, if true, would have violated DYS policy, she replied: “[ajccording to our policy ... it would be.” J.A. at 368 (emphasis added). Thus, the testimony did not, in fact, embrace an ultimate issue.
There remains, however, a question on the extent to which the jury might have been confused concerning the interplay of liability under internal policy and Title VII. Even when lay opinion testimony does not technically implicate ultimate legal issues, a district court may properly
*677
exclude testimony if “terms used by the witness have a separate, distinct and specialized meaning in the law different from that present in the vernacular.”
United States v. Sheffey,
Therefore, a district court should not presume that a jury of laypersons is well-versed on the distinct legal meanings of “sexual harassment” under an agency’s policy and “sexual harassment” under Title VII. Without a specific instruction that policy liability does not equal statutory liability, juries might improperly and prematurely presume guilt. While the district court here did not provide a specific instruction on the distinctions between policy and statutory liability, the district court did immediately instruct the jury to refrain from prematurely evaluating the evidence, or presuming guilt if it found that Slayton established “harassment.” It further ordered the jury to await its precise liability instructions before assessing the credibility of Slayton’s claims. Thus, to the extent this testimony might have improperly confused the jury, the district court’s instructions cured any potential prejudice.
Moreover, Bess’ and Braithwaite’s brief testimony on this issue was not so prejudicial as to warrant a new trial. A “[r]eversal based on improper admission of evidence is appropriate only when the admission interfered] with substantial justice.”
Morganroth & Morganroth v. DeLorean,
B.
DYS also argues that it cannot be held liable for a hostile work environment created by prison inmates. Although there is scant appellate case law on this question, it is beyond doubt that inmate conduct, without more, is an insufficient predicate for a hostile environment claim.
See, e.g., Maine v. Oklahoma Dept. of Corrections,
No. 97-6027,
However, this general rule against prison liability for inmate conduct does not apply when the institution fails to take appropriate steps to remedy or prevent illegal inmate behavior.
See Waymire v. Harris County, Tex.,
In this case, we initially note that Slayton did not merely allege that inmate conduct created a hostile environment. The record principally supports a finding that Appline himself, with the tacit approval of the prison, engaged in conduct that created a hostile environment. The record shows that Appline continuously played misogynistic rap music, referred derogatorily to Slayton’s menstrual cycle, repeatedly called her a “bi**h,” displayed sexually-explicit music videos, and performed erotic dances in plain view. Moreover, while inmate conduct is involved in a number of Slayton’s other allegations of harassment, it is clear that Appline encouraged, endorsed, and even instigated the inmates’ harassing conduct.
Cf. Hicks,
C.
DYS also appeals the denials of its directed verdict motions, contending that Slayton’s allegations fail to establish an objective hostile working environment under Title VII. We review
de novo
the district court’s denial of a directed verdict.
See Snyder v. Ag Trucking, Inc.,
A plaintiff establishes a hostile work environment “[w]hen the workplace is permeated with discriminatory intimidation, ridicule, and insult that is sufficiently severe or pervasive to alter the conditions of the victim’s employment and create an abusive working environment.”
Williams v. General Motors Corp.,
To establish an objectively hostile environment, one must establish that a “reasonable person in the plaintiffs position, considering all the circumstances” would find the environment hostile.
Oncale v. Sundowner Offshore Services, Inc.,
We cannot conclude that the district court erred in denying DYS’ directed verdict motions. Slayton testified, and the jury may have believed, that Appline continuously called her a “b**eh,” continuously played sexually explicit rap music and videos, intentionally sent her to check on an inmate who was masturbating, contended that her menstrual cycle was the cause of her problems, and consistently told inmates that they did not need to worry about her as she was a “bi**h” who would be fired soon. Slayton further testified that this conduct began in early March 1996 and continued for four months until her June 20 termination. Moreover, DYS personnel were well aware of Appline’s conduct, but nevertheless failed to take any action. Because of the severity and duration of this activity, we conclude that the jury could have reasonably found that Slayton experienced a work environment that a reasonable woman would find hostile.
See Yates v. Avco Corp.,
D.
DYS additionally asserts that the district court erred in denying its motion for remittitur. We review the denial of remittitur for an abuse of discretion.
See Bickel v. Korean Air Lines Co.,
DYS relies heavily on this court’s recent unpublished opinion in
Barna v. City of Cleveland,
No. 96-3971,
Barna,
however, is inapposite because the Court expressly premised its holding on the short, three-week duration of the harassment. The record here shows Slay-ton experienced continuous harassment from Appline for almost four months. These aforementioned incidents,-occurring on an almost daily basis, included incessant references to Slayton as a “bi*ch,” continuous playing of sexually explicit music and videos, and intentionally sending Slayton to observe a masturbating inmate. Even if one might consider the award generous, see
Koster v. Trans World Airlines, Inc.,
E.
Finally, DYS challenges the district court’s grant of Slayton’s reinstatement motion. We review the reinstatement grant for an abuse of discretion.
See Hudson v. Reno,
DYS argues that because the jury ruled against Slayton on her gender discrimination claim — thereby finding that she was not terminated because of gender — the district court improperly granted reinstatement. However, the jury explicitly found in an interrogatory that the hostile environment adversely affected Slay-ton’s job performance. Additionally, a hostile environment finding necessarily recognizes that “sufficiently abusive harassment adversely affects a ‘term, condition, or privilege’ of employment.”
Yeary v. Goodwill Industries-Knoxville, Inc.,
III.
Because we do not find error in any of the district court’s holdings, we AFFIRM its judgment.
Notes
. The district court noted that it “listened carefully to the testimony of the investigating officer and was unimpressed with the conduct and fairness of that investigation.” J.A. at 110.
