delivered the opinion of the court:
Plaintiff, Leopoldo Hernandez, filed an action in the circuit court of Cook County for personal injuries against defendant, Power Construction Company, under the Structural Work Act (Ill. Rev. Stat. 1977, ch. 48, pars. 60 to 69). The injuries were allegedly sustained when plaintiff fell from a scaffold being used in the construction of a building under the supervision of defendant. Plaintiff alleges that defendant violated the Act by failing to provide a safe and properly constructed scaffold upon which to work.
At the time of filing its answer, defendant demanded a jury trial. Four years later and immediately before trial, defendant withdrew the demand. Prospective jurors had already entered the courtroom and were then ushered out. Plaintiff objected to the withdrawal and requested leave to file his own jury demand under sections 59 and 64 of the Civil Practice Act (Ill. Rev. Stat. 1977, ch. 110, pars. 59, 64) and Supreme Court Rule 183 (58 Ill. 2d R. 183). Plaintiff was taken by surprise by defendant’s withdrawal of his jury demand and did not then articulate the grounds upon which he sought leave to file his own jury demand. The court denied the request and proceeded to hear the case as the finder of fact.
Plaintiff sought, as part of his case, to introduce into evidence the opinion of an expert witness as to whether plaintiff’s fall could have been prevented if the scaffold had included certain safety features, namely a guardrail and a toeboard. Defense counsel objected and the trial judge excluded the evidence, stating that such matters were to be decided by the trier of fact. No offer of proof was made.
At the close of plaintiff’s evidence the court granted defendant’s motion for judgment. The appellate court reversed and remanded the cause to the circuit court, ordered a new trial before a jury, and held that the trial court erred in excluding the opinion of plaintiff’s expert. (
On appeal, defendant argues that plaintiff waived his right to a jury trial by not filing a demand therefor at the time that the action was commenced, and that there is no need for the expert opinion sought to be elicited because the subject in question is within the common knowledge of the layman. Plaintiff asserts that the trial court erred in denying plaintiff’s motion for leave tó file a jury demand and in excluding the opinion of plaintiff’s expert witness. Plaintiff also argues that the trial court’s grant of defendant’s motion for judgment was contrary to the manifest weight of the evidence. We will first address the issue of whether the denial of plaintiff’s motion for leave to file a jury demand was error.
The right to jury trial is a constitutional right guaranteed by article I, section 13, of the Illinois Constitution of 1970. Section 64 of the Civil Practice Act (Ill. Rev. Stat. 1977, ch. 110, par. 64) specifies the time at which a demand for jury trial must be made, providing:
“A plaintiff desirous of a trial by jury must file a demand therefor with the clerk at the time the action is commenced. A defendant desirous of a trial by jury must file a demand therefor not later than the filing of his answer. Otherwise, the party waives a jury.”
However, section 59 (Ill. Rev. Stat. 1977, ch. 110, par. 59) provides:
“On good cause shown, in the discretion of the court and on just terms, additional time may be granted for the doing of any act or the taking of any step or proceeding prior to judgment.”
Similarly, Supreme Court Rule 183 (58 Ill. 2d R. 183) provides:
“The court, for good cause shown on motion after notice to the opposite party, may extend the time for filing any pleading or the doing of any act which is required by the rules to be done within a limited period, either before or after the expiration of the time.”
As is evident from a reading of the above-quoted provisions, good cause must be established in order to obtain an extension of time in which to file a late jury demand. (Village of Park Forest v. Walker (1976),
Because the right to jury trial is of constitutional dimension, courts will liberally construe statutes which regulate exercise of the right. “[T]he inclination of the court should be to protect and enforce the right.” Morrison Hotel & Restaurant Co. v. Kirsner (1910),
It appears from the record that no inconvenience or prejudice would have resulted if the trial court had granted plaintiff’s request for a jury trial. No inconvenience would have resulted because the case was already on the jury docket and prospective jurors were in the courtroom when defendant withdrew its demand. No evidence of prejudice is present since both parties had anticipated a jury trial.
The absence of inconvenience or prejudice, however, does not alone establish good cause. The moving party must assert some independent ground for granting his late demand. Stephens v. Kasten (1943),
Plaintiff Hernandez, in an effort to establish good cause, asks us to look to the practical realities of the situation and the unfairness that would result if he is denied a jury trial. Plaintiff points out, and we take judicial notice of the fact, that a plaintiff who desires a jury trial in the circuit court of Cook County must wait approximately two years longer than those willing to have a bench trial. A plaintiff is thus faced with two mutually exclusive alternatives. He may obtain the benefit of a more prompt adjudication through a bench trial if he is willing to waive his right to jury trial, or he may opt for a jury trial and thereby relinquish any possibility of a more prompt adjudication. Each alternative presents considerations that are attractive to the personal injury plaintiff. Through a bench trial the plaintiff may recover damages sooner than he might if he chose a jury trial, but in a jury trial the plaintiff might enlist the sympathies of the jurors and improve his chances of recovery.
The appellate court agreed with plaintiff’s analysis, holding that plaintiff’s demand for a jury trial should have been granted. The court pointed out that plaintiff, because of the defendant’s jury demand, had already lost the benefit of an early adjudication, and that a denial of the demand would deprive plaintiff of the advantage of a jury trial as well. (
At oral argument counsel for defendant argued that plaintiff failed to make any showing of good cause at the time that leave to file a late jury demand was requested. We consider this argument to be without merit, however, as the record clearly indicates that plaintiff was taken by surprise by defendant’s last minute withdrawal of his jury demand, and that plaintiff’s efforts to support his demand were frustrated by the trial court’s denial of his motion. Plaintiff’s request for leave to file a late jury demand was entirely proper and in accordance with long-established practice in Illinois. Cf. Petrie v. People (1866),
We now turn to the parties’ contentions concerning the admissibility of the opinion of plaintiff’s expert witness. Defendant’s principal contention is that there is no need for an expert because the subject at issue is a matter of common knowledge and should be decided by the trier of fact without the assistance of expert testimony. Plaintiff’s counsel had asked the witness whether plaintiff’s fall from the scaffold could have been prevented if guardrails had been installed.
The opinion sought to be elicited dealt with matters of common knowledge, i.e., whether guardrails could prevent one from falling off a scaffold. In Miller v. Pillsbury Co. (1965),
“While there has been a reluctance to permit expert testimony on many matters on the basis that it invades the province of the jury, confuses the issues and usurps the function of the jury, the trend is to permit expert testimony in matters which are complicated and outside the knowledge or understanding of the average person, and even as to matters of common knowledge and understanding where difficult of comprehension and explanation. The jury still may accept or reject such testimony.”
Expert opinions thus may not be admitted on matters of common knowledge unless the subject is difficult of comprehension and explanation. For example, in Ray v. Cock Robin, Inc. (1973),
In summary, we hold that the trial court abused its discretion in .denying plaintiff’s motion for leave to file a late jury demand. We emphasize the presence of good cause and the absence of inconvenience or prejudice. Each case must be decided on its own facts. (Hudson v. Leverenz (1956),
Because plaintiff was entitled to a trial by jury, the trial court could direct a verdict for defendant only if all the evidence, when viewed in its aspect most favorable to the plaintiff, so overwhelmingly favored defendant that no contrary verdict based on that evidence could ever stand (Pedrick v. Peoria & Eastern R.R. Co. (1967),
Accordingly, the judgment of the appellate court, reversing the circuit court', is affirmed. The cause is remanded to the circuit court of Cook County for a new trial, with directions to proceed in accordance with the views herein expressed.
Affirmed and remanded, with directions.
