Appellant George Serafino challenges the judgments of conviction and sentence entered following his jury trial, in the United States District Court for the District of Massachusetts, for mail fraud, money laundering, and conspiracy. See 18 U.S.C. §§ 1341, 1346, 1956, 371. We affirm the district court judgments in all respects.
I
BACKGROUND
While employed by Milton Bradley Company (“MBC”), Serafino and codefend-ant Arthur Peckham participated in a kickback scheme whereby Peckham, MBC’s vice president, instructed MBC’s vendors, Frank Gentile, Inc. (“Gentile”) and Edar-on, Inc. (“Edaron”), to inflate various charges on their invoices to and leasе agreement with MBC, and to divert the surplus funds — totaling more than $840,-000 — either directly to these defendants or indirectly to two companies owned by Ser-afino. Neither defendant disclosed the kickbacks to MBC. 1
II
DISCUSSION
A. The Motion to Sever
Serafino first contends that the district court abused its discretion in denying his motion to sever his trial from Peckham’s. See Fed.R.Crim.P. 14. This contention is predicated on (i) a statement by Peckham’s counsel during opening argument that Peckham was not directing Serafino in the alleged money-making enterprise, and (ii) an admission by Peckham that the monies Gentile ultimately disbursed to Peckham and Serаfino were equal in amount. Ser-afino insists that these statements were fatally antagonistic to his anticipated defense: viz., that he was an unwitting dupe who blindly carried out orders in the fraudulent scheme devised by Peckham.
We discern no plain abuse of discretion.
See United States v. Sotomayor-Vazquez,
A thorough record review has disclosed no such irreconcilability. Serafino never disputed that the MBC vendors funneled payments through his companies’ accounts, and Peckham’s contention that he was neither the mastermind nor the driving force behind the scheme did not necessarily require that the jury either accept or reject the defense that Serafino was an unwitting participant.
B. The Testimony of Agent Kavrakis
Next, Serafino insists that the district court abused its discretion by admitting in evidence the trial testimony offered by IRS Agent Harry Kavrakis. Serafino asserts that the gоvernment failed to provide adequate advance notice of the nature of the Kavrakis testimony, which focused on the financial benefits Serafino realized from the kickback scheme and constituted an improper attempt to establish tax evasion even though the indictment included no such charge.
Although a tax evasion charge likewise may have turned upon whether Serafino received unreported income, the government’s proffer relating to Serafino’s receipt of these kickbacks constituted crucial evidence,
inter alia,
that he
knowingly
participated in the mail fraud conspiracy. Thus, unquestionably the Kavrakis testimony — that Serafino realized financial benefits from the scheme — was independently relevant to the mail fraud, money laundering, and conspiracy counts as well.
See, e.g., United States v. Isabel,
C. The Expert Witness Instruction
Serafino next contends that it was reversible error to instruct the jury,
sua sponte,
that Kavrakis was testifying as an expert witness for the government. Since no objection was asserted, either during or fobowing the jury charge, we review only for plain error.
See United States v. Lemmerer,
First, even though it was not requested by the government, the expert witness instruction was arguably correct. That is, presumably Kavrakis was qualified to testify as an “expert” regarding the amount of Peckham’s outstanding tax liability on the tax evasion сount. Indeed, during the trial there were open references to Ka-vrakis as an “expert,” both by the government (“our expert witness”) and by the district court (“The testimony of the Government’s expert was that Mr. Peckham had a good deal more income than he reported.”). Yet the defense asserted no objection. Although it may well have been more prudent to instruct the jury, in spe *331 cific terms, that Kavrakis was to be considered an expert witness in regard to the tax evasion issue only, viewed in context the sua sponte charge certainly did not “blindside” the defense, nor was it obviously erroneous.
Furthermore, the district court’s passing reference to Kavrakis as an “expert” did not, in all probability, substantially impair Serafíno’s right to a fair trial, given that (i) by its express terms the jury charge applied exclusively to Kavrakis’ “opinions,” and the jury common-sensically would not have regarded the Kavrakis testimony' — -“number-crunching” the figures summarized in Exhibit 675 — as an expert “opinion,” but rather as an objective rendition of the historical data demonstrating that Serafino had received proceeds from the fraudulent scheme, 3 and (ii) the district court immediately mitigated whatever special aura the jury might otherwise have attached to the term “expert,” by emphasizing that “[ejxpert testimony should be considered just like other testimony.” (Emphasis added.)
D. The Selective Prosecution Claim
Serafino next contends that the district court abused its discretion in rejecting his request for an evidentiary hearing regarding whether he had been рrosecuted vindictively by the government based on his involvement in the kickback scheme, even though various other participants were never prosecuted.
See United States v. Graham,
First, unlike Serafino, who received several thousands of dollars in kickbacks, the MBC vendors who disbursed the kickbacks received no proceeds for their personal benefit; second, the MBC vendors provided their full cooperation to the prosecution.
See, e.g., Bordenkircher v. Hayes,
E. Sufficiency of Evidence: Deprivation оf Property or Honest Services
Serafino further contends that the government adduced insufficient evidence on the mail fraud charge, in that it failed to establish either that MBC sustained a loss of “property or other items of economic value by false pretenses,” or thаt Serafino engaged in “a scheme to defraud MBC of [its employee’s] honest services by false pretenses.”
United States v. Martin,
In the first place, Serafino was
not
acquitted of all counts relating to the Gentile kickbacks; the conspiracy charged in count 1 explicitly encompassed these kickbacks. Second, Peckham expressly instructed both Gentile and Edaron to
inflate
their charges to MBC, on both contracts and leases, and to pass the resulting windfall along to him and Serafino. The evidence of the deliberate inflation of these charges, together with the remittance of the resulting
surplus
to the co-defendants, plainly sufficed to establish the requisite cognizable financial harm to MBC under section 1346.
Cf. United States v. Jain,
*333 F. Sufficiency of Evidence; Foreseeability of Use of Mails
Finally, Serafino contends that the government adduced insufficient evidence that he reasonably could have foreseen use of the mails in furtherance of the kickback scheme,
see United States v. Royal,
The government established, beyond a reasonable doubt, that MBC mailed its invoices and lease payments to Gentile and Edaron, and through that eminently foreseeable mechanism delivered the very monies Edaron and Gentile “kicked back” to thе codefendants. No more evidence was needed.
See United States v. Woodward,
As the remaining contentions advanced by appellant are utterly lacking in merit, no separate discussion is warranted. Ae-cordingly, the judgments of conviction and sentence are affirmed.
Affirmed.
Notes
. Although convicted on the same charges, as well as a tax evasion charge, see 26 U.S.C. § 7201, Peckham has not appealed.
. Serafino challenges the admission of Exhibit 675 as well, which summarized the Kavrak-is testimony regarding Serafino’s receipt of the kickbacks. As Serafino did not object at trial, however, and the evidence was highly relevant, we discern no plain error.
. The jury instruction stated: “You have heard testimony from an expert witness, Harry Kavrakis. An expert witness has special knowledge or experience that allows the witness to give an opinion. Expert testimony should be considered just like other testimony. You may adopt it or reject it. In weighing the expert opinion received in evidence in this case, you should consider the soundness of his reasons for his opinion, and whether the opinion is supported by other evidence in the сase. Remember that you alone decide how much weight it should be given.”
. We review all direct and circumstantial evidence, and the reasonable inferences therefrom, as a whole and in the light most favorable to the government, abjuring plenary assessments of witness credibility, to determine whether a rational jury could have found all elements of the charged offense beyond a reasonable doubt.
See Martin,
. Further, Serafino faults the district court's refusal to grant his request that the verdict form require the jury to indicate whether its mail-fraud verdicts were based on a deprivation of property, a deprivation of honest services, or both. First, there is no question that the district court,
in its jury instruction,
amply differentiated between the two types of deprivation, so that the jury was well aware of the distinction. The only question, therefore, is whether a jury in a mail fraud case should be required to enter a special verdict. There is no authority whatsoever for such a proposition.
See, e.g., Martin,
. Serafino further contends that the district court erred in attributing between $200,000 and $350,000 to him for sentencing purposes.
See
U.S.S.G. § 2Fl.l(b). Given the perfunctory treatment accorded this issue on appeal, however, we deem it waived.
See United States v. Bongiorno,
