My Sister’s Place, a nonprofit Vermont corporation, rented the second floor of a downtown Burlington building in June, 1975, with the intention of opening a women’s center. Prior to extending its month-to-month lease to a six-month arrangement, agents of My Sister’s Place met with Burlington deputy fire warden Lt. John Vincent, to discuss the renovations necessary to bring the premises into compliance with the relevant fire code. The Burlington City Code entrusts fire wardens with the duty of enforcing those codes.
At that meeting, plaintiff’s agents informed defendant Vincent that they intended to use the space for a restaurant and a community-based social and cultural women’s center, and expected approximately fifty people at meetings. Vincent was aware that the previous tenant had planned to open a restaurant. He also knew that the building was wood-core. Plaintiff’s agents were given by him a list of specific improvements necessary to meet fire code requirements, including the installation of sheetrock, particular types of doors, two fire extinguishers, emergency lighting, exit signs and bannisters, and the repair of the stairs. Vincent informed plaintiff’s agents that the restaurant area capacity would be restricted to 75-100 persons. He also asked for a list of specific activities planned at My Sister’s Place. No list was ever provided.
About ten days later, plaintiff’s agents were issued a building permit by the Burlington building inspector so that the renovations could be made. Workers were hired and construction commenced. All employees agreed to defer receipt of their wages until after My Sister’s Place opened, but they kept track of the hours worked.
In September, 1975, Vincent was asked to inspect the premises to determine the proper placement of fire extinguishers and fire doors. At that meeting, plaintiff’s agents mentioned *607 for the first time that a bar would be installed and that My Sister’s Place would apply for a liquor license after the restaurant opened. Vincent responded by informing- plaintiff’s agents that they could have neither a restaurant nor a bar, attributing his earlier approval of a restaurant to his being unfamiliar with certain provisions in the fire codes for wood-core buildings.
Plaintiff sued Vincent and the City of Burlington, claiming it acted in reliance of Vincent’s negligent statements to its detriment in the sum of $12,749.00. Plaintiff later amended its complaint to demand $25,806.98. Defendants waived their right to a jury after the first complaint, V.R.C.P. 38(d), but, in response to the amended complaint, attempted to revive that right. The trial court rejected the request for a jury.
The trial court concluded that Vincent was negligent in performing his duties, that plaintiff’s agents relied upon his statements, and, as a result, suffered damages. Citing
Verrill
v.
Dewey,
Burlington appeals, claiming that the trial judge made errors of law and incorrectly calculated damages. Plaintiff did not challenge the court’s decision concerning Vincent.
I.
Central to finding Burlington liable was the lower court’s determination that the City was not protected by the doctrine of sovereign immunity. 29 V.S.A. § 1403 provides:
[W]hen a municipal corporation purchases a policy of liability insurance under section 1092 of Title 24 ... it waives its sovereign immunity from liability to the extent of the coverage of the policy and consents to be sued.
There is no dispute that Burlington has an insurance policy covering the present damage action. Because of that policy the trial judge ruled that the defense of sovereign immunity was not pertinent to the suit.
*608 Defendant, however, claims it is protected by sovereign immunity both because plaintiff did not properly plead or prove waiver of the defense.
While sovereign immunity is not considered an affirmative defense in Vermont,
Lemieux
v.
City of St. Albans,
Defendant also claims that it shares the quasi-judicial immunity enjoyed by its employee, Vincent. While a public officer performing his official duties is immune from suit,
Verrill, supra,
The immunity waiver elucidated in 29 V.S.A. § 1403 makes no mention of the governmental unit vicariously enjoying an employee’s immunity, and we will not strip the statute of its plain meaning nor ignore the obvious intention of the Legislature. See
State
v.
Lynch,
II.
Burlington also challenges the trial judge’s conclusion that it should be estopped from disclaiming liability for damages resulting from its agent’s representations to plaintiff.
Vincent was a duly authorized agent of the City charged with the duty of enforcing the National Fire Safety Code. Concomitant with that duty is the charge of knowing the law and properly advising the public. There is no dispute
*609
that Vincent was acting within the scope of his employment throughout his dealings with plaintiff’s agents. While the doctrine of estoppel must be applied with great caution when the government is the involved party,
Champaign County, Illinois
v.
United States Law Enforcement Assistance Administration,
The doctrine of equitable estoppel precludes a party from asserting rights which otherwise may have existed as against another party who has in good faith changed his position in reliance upon earlier representations. See
Dutch Hill Inn, Inc.
v.
Patten,
Defendant, however, argues that plaintiff’s reliance upon Vincent’s representations was unreasonable because plaintiff’s agents had not informed the fire warden that they were contemplating adding a bar to the meeting center. “Courts will not predicate an estoppel in favor of one whose own omissions or inadvertence contributed to the problem,”
Town of Bennington, supra,
Defendant also claims that the doctrine of equitable estoppel is inapposite to this case because plaintiff has an adequate remedy at law. That doctrine, however, is applicable both in law and at equity.
Precious Metals Associates, supra,
III.
During the course of the litigation below, the trial court excluded evidence pertaining to plaintiff’s plans to serve liquor and refused to make a finding that minutes of a meeting held by plaintiff’s representative lay the groundwork for the defense of assumption of the risk. It is difficult to ascertain the significance of defendant’s claim that these rulings constitute reversible error, since defendant’s brief is marked by a lack of authority or particular citation to the transcript of the case below. See
State
v.
Doria,
IV.
Defendant also claims that the court committed reversible error by refusing to grant a request for trial by jury. Defendant admits that the right to a jury was waived following the original complaint, V.R.C.P. 38(d), but claims that the right was revived when plaintiff filed an amended complaint.
If an amended complaint does not raise new issues, granting a request for a jury is a matter of judicial discretion. V.R.C.P. 39
(b);
see
Western Geophysical Co. of America, Inc.
v.
Bolt Associates,
Defendant claims that the amended complaint raised for the first time issues dealing with liability based upon the issuance of the building permit and the doctrine of equitable estoppel. However, not only did the original complaint adequately apprise defendant of the role of the building inspector and lay the foundation for claiming the City’s liability based on an estoppel theory, but when the matrix of facts pertinent to a complaint are not changed, the addition of a new legal theory for recovery is not sufficient to restore the right to a jury,
Las Vegas Sun, Inc.
v.
Summa Corp.,
*612 The decision whether to grant defendant’s request for a jury was therefore discretionary, and there is no indication that the trial judge abused that discretion. Id. at 621.
V.
Defendant also challenges various aspects of the damage award. In tort, compensation is provided, as nearly as possible, to restore a person damaged to the position he would have been in had the wrong not been committed.
Emery
v.
Caledonia Sand & Gravel Co., 117 N.H.
441, 447,
In light of these general principles, we find merit in defendant’s claim that allowing damages for time spent in fund raising activities for plaintiff’s organization was erroneous. Plaintiff provided no evidence concerning the success of the fund raising, so it is entirely possible that the organization gained, not lost, by the work. In addition, the causal connection necessary to award damages is too tenuous. Plaintiff has the burden of
proving
damages, see
Budney
v.
Zalot,
Defendant also challenges the lower court’s failure to mitigate the damage award by the $966.00 given plaintiff by the landlord for the improvements made in the leasehold.
Plaintiff directs our attention to cases dealing with the collateral source rule for support of the court’s ruling that a set-off would be inappropriate. That rule allows plaintiff to make a full recovery against the tortfeasor even when compensated for injuries by a source independent of the tortfeasor. See
Northeastern Nash Automobile Co.
v.
Bartlett,
Defendant further states that the trial judge improperly awarded damages based on the wages owed people who had worked for plaintiff, claiming that payments on the employment contracts were contingent upon the organization turning a profit.
Although the employees agreed to defer payment until after plaintiff was to open business, there is no evidence that the wages were conditional. It is true that expected profits from a new business are too speculative and uncertain to be considered in a damage award,
Berlin Development Corp.
v.
Vermont Structural Steel Corp.,
Defendant also claims that compensation should not be granted for plaintiff’s labor contract with an unlicensed electrician to do the wiring in the premises. Although defendant again provides little guidance in support of the claim, and plaintiff’s obfuscated response cites no law, the parties apparently differ on whether the clean hands doctrine precludes recovery on the contract in question.
A contract whose formation or performance is illegal may be held void and unenforceable,
Davis
v.
Pennzoil Co.,
As a final challenge to the damage award, defendant claims the judge erred by not allowing into evidence plaintiff’s original interrogatory answer on losses. Defendant had asked for an itemized list of losses, and plaintiff replied by totaling construction costs of $3,010.93. Plaintiff updated the answer, seven months before trial, by requesting $7,088.75 for contracted labor and $2,138.23 out-of-pocket expenses. The trial court rejected defendant’s claim that the original answer was an admission against interest. Since we are remanding this matter for recomputation of damages, we need not decide whether the evidentiary decision was prejudicial or grounds for reversal. However, original pleadings, though later revised, are generally admissible against the party filing the pleadings as an admission against interest. See
Shell
v.
Parrish,
Defendant’s claim that the trial judge should have imposed sanctions upon plaintiff pursuant to V.R.C.P. 37 for delay in complying with certain discovery requests fails since there is no evidence that there was prejudice to defendant. See
Crawford
v.
State Highway Board,
Reversed and remanded for computation of damages in accordance with this opinion.
