This tort action, authorized by the Federal Tort Claims Act, 28 U.S.C.A. § 2674, was brought against the United States under Ga. Code § 105-1307 (1976) (current version at Ga. Code Ann. § 74-108), for wrongful death of Clay Harden, 15 year old son of plaintiffs Janet L. and James Harden. After a non-jury trial the district court found that the agent of the government was negligent, and that Clay Harden was negligent, and his negligence a proximate cause, to the extent of 25%. He entered judgment for plaintiffs for $67,586.91, plus interest at 7% from date of judgment. Plaintiffs appeal.
Following are the facts as found by the district court and as supported by the evidence. Clay and 12 or 15 other boys went to a campsite area on United States government property in rural Georgia to initiate Clay and. other new members into a so-called fraternity. They paid a fee for the use of campsite 12. Clay and others drank beer they had brought, but Clay was not intoxicated.
The objects of the fraternity were hazing and “hell-raising.” Part of the initiation rite was for the initiates to “streak,” or run naked in public, on this occasion through other campsites. Those to be initiated stripped naked and were doused with eggs, flour, catsup, and other foods, plus dirt. Members shepherded them toward other occupied campsites. The group, proceeding at a walk and with much noise and shouted profanity, were disorganized, rowdy, and boisterous. Some of the initiates “streaked” through family campsites. Other campers, particularly women, were terrified. Two men heard the commotion, returned to their campsites, and found their wives crouching behind a camper in which they had locked their children for protection. Other campsites were similarly terrorized. At least one shot was fired from an unknown source.
Some person drove from a neighboring campsite and sought assistance from Paul Strang, a ranger who worked only during *1027 peak recreation periods. T'his person told Ranger Strang to go to the campsite area, that there was about to be “a head-knocking contest” down there. Strang went to the area indicated and found a group of campers — men, women and children — excited and agitated and some armed. They told him what had occurred.
The group of initiates had scattered after leaving this area. They shouted obscenities and terrorized campers at another site. The group then began to move in a disorderly but somewhat quieter manner back toward campsite 12. A shot was fired from a truck with an unknown occupant.
For the purpose of searching for the boys, Strang left the campsite area to which he had first gone. As he approached campsite 12 he heard the shot fired from the truck. Some girls had arrived on the scene, and he asked them if there was any trouble and was told there was not. As he drove slowly away along the road he saw, at his left front, two naked boys approaching him, and several other naked males emerging from the woods on his right. He put his flashlight beam on the boys and called to them to halt but received no response. Strang was excited and fearful. He did not know the age or the purpose of the naked boys. He thrust his gun out the window, holding it almost straight up, intending to fire a warning shot in the air. His truck stalled, his body lurched, his gun hand came in contact with the rear view mirror, and these events, combined with his nervousness, caused him to inadvertently discharge the pistol. The bullet struck Clay, one of the two boys on his left, and killed him.
I. Clay’s negligence
The district court found the government had negligently maintained the truck that stalled and found Ranger Strang negligent.
Harden
v.
U.S.,
Wesley Clayton Harden also failed to exercise ordinary care or diligence. First, he did not heed the command of Ranger Paul Strang when Strang directed him to halt. At that time, Strang was in uniform in a marked vehicle, and had all of the visual appearances of a duly authorized law enforcement officer. Second, he willingly and actively participated in an indecent public exposure of himself, a disturbance of the peace, and a sequence of events which he knew, or should have known, would cause fear, excitement, and resentment among other persons lawfully within the Ridge Road Campsite Area. Third, Harden accompanied others whom he knew to be engaged in illegal and opprobrious activities. He knew that shots had been fired during their activities. He knew or should have known that exposure, offensive language, and the conduct of the group would cause fear, excitement, resentment, and possibly irrational defensive measures from other persons lawfully in the Ridge Road Campsite Area. Harden owed a duty to the public, and to other users of the campsite area, to refrain from illegal, criminal, opprobrious, or indecent behavior.
The trial court did not err in finding Clay guilty of negligence that proximately contributed to his injury. Strang told the boys to halt. Clay’s companion saw the ranger insignia on the side of the truck. The “streaking” at the family campsite had ended, but the boys had not yet reached the campsite they had rented. The conduct of the group had been such that it was likely to, if not intended to, cause alarm among others in the area. The group had precipitated an uproar at campsites in two or three areas sufficient to cause someone to seek ranger assistance. In the uproar two shots were fired. Women, fearful of safety, locked their children in a camper and hid behind it. When Strang arrived people were agitated and some armed. After the boys left the first campsite area they terrorized one or two more campsites. When *1028 the encounter carne with the ranger, Clay was walking the road, still naked, with other initiates. The district court could properly find that Clay was negligent. The contention that as a matter of law Clay could not be found negligent is patently untenable. Whether the dangerous situation — that Clay had helped to create — had terminated was a question for the finder of fact. Certainly it had not as a matter of law come to an end.
The district court was not plainly erroneous in finding that Clay’s negligence was a proximate cause of his death. The intervening act of the ranger in shooting the gun did not break the chain of causation as a matter of law.
See William
v.
Grier,
Citing
Johnston v. Pittard,
Additionally, the doctrine of last clear chance does not, as the plaintiffs contend, absolve Clay of any comparative negligence. Under Georgia law, last clear chance applies only if the defendant actually knows of the plaintiff’s perilous position. It is insufficient to show merely that the defendant should have known of the plaintiff’s peril.
Southland Butane Gas Co. v. Blackwell,
II. Damages
The plaintiffs argue that the district judge’s award of damages was inadequate because he (1) deducted Clay’s expected income taxes from the award; (2) refused to adjust Clay’s estimated future earnings for the effect of inflation; (3) used an excessively high interest rate in discounting the award to present value; and (4) failed to award damages for the period between Clay’s death and his expected graduation from high school. Before turning to each of these allegations, we first generally consider whether federal or state law governs.
The FTCA initially directs federal courts to state law: “The United States shall be
*1029
liable ... in the same manner and to the same extent as a private individual under like circumstances . . . . ” 28 U.S.C.A. § 2674 (1976). We have accordingly held that “[t]he components and measure of damages in FTCA claims are taken from the law of the state where the tort occurred ... . ”
Ferrero v. U.S.,
A. Income taxes
Under Georgia law, taxes and other personal expenses of the decedent are not deducted from wrongful death awards. Ga. Code Ann. § 105-1308. We have, however, held that the FTCA’s prohibition against punitive damages requires that the personal expenses of the deceased be subtracted from an award of future earnings. Harte v.
U.S.,
A recent Supreme Court decision strongly suggests that ordinarily taxes must be deducted in FTCA suits. In
Norfolk & Western R. Co.
v.
Liepelt,
The plaintiffs do not dispute the validity of this general principle. Based on
McWeeney v. New York, New Haven & Hartford, R.R.,
Liepelt
casts serious doubt on the continued validity of the
McWeeney
exception, even in jury trial cases. In holding that the jury should have been presented with evidence regarding the effect of taxes, the Court flatly repudiated the basis of the
McWeeney
exception, the fear that the jury will be confused by complex and speculative tax calculations.
2
The Court acknowledged that the tax issue might serve as a basis for “protracted expert testimony and debate” but added that “the practical wisdom of the trial bar and the trial bench has developed effective methods of presenting the essential elements of an expert calculation in a form that is understandable by juries that are increasingly familiar with the complexities of modern life.”
even clearer in FTCA bench-trial cases where the jury or trier of fact confusion rationale applies with less force, if at all. In such cases the effect of income taxes, like other items of personal expense, must be considered in awarding compensatory damages. 4 We therefore hold that the district court did not err in deducting income taxes from Clay’s expected earnings.
B. Inflation damages
The district judge declined to give “effect to any inflation factor, and the probable depreciation in the value of the dollar” because he considered such a factor “too speculative.”
The plaintiffs’ argument regarding the implications of Liepelt for our holding in Penrod is unavailing here. Both Liepelt and Penrod arose under federal wrongful death law. In contrast to FELA and maritime statutes, however, the FTCA generally requires federal courts to apply state law in determining the appropriate measure of damages. Ferrero v. U.S., supra.
Georgia law permits the trier of fact to consider inflationary trends in awarding damages.
Wood v. Andersen,
145 Ga.App.
*1031
492,
Here we are uncertain whether the trial judge complied with Georgia’s policy regarding inflation damages. It is not clear whether he found the evidence of inflation “too speculative” as a general matter, a conclusion that conflicts with a decision of law made by Georgia courts, or whether, consistent with Georgia law, he found the evidence more speculative than evidence of inflation can reasonably be expected to be. 6 We accordingly vacate that part of the judgment establishing the amount of damages and vacate the findings relating'to the inflation element of damages and remand to the district court for it to determine, and make findings, on whether, considering the uncertainty that inheres in evidence of inflation, the evidence presented in this case has met the standards of probative value that can reasonably be required of such evidence and, if it has, to resolve damages accordingly.
C. Discount rate
The trial judge used a 9% rate of interest in discounting his award to present value. A Georgia statute declares: “It shall be lawful for the trier of fact, the jury or court, as the case may be, in determining the present value of any future earnings, ... to reduce the same to present value upon the basis of interest calculated at five per cent per annum.” Ga. Ann. Stat. § 38-217. The plaintiffs argue that the statute is mandatory, requiring the application of a 5% rate of interest, while the government contends that “[t]he statute merely suggests an acceptable option.” Brief of the appellee, at 23. Despite the ambiguity of the statute’s literal language, the statute’s historical background and Georgia cases suggest that the statute is mandatory rather than permissive.
Prior to 1970, when the statute was passed, Georgia courts had consistently discounted awards of future earnings according to a 7% rate of interest.
Kitchens v. Hall,
We decline to upset the construction that Georgia courts have placed upon the statute and hold that Georgia law requires use of a 5% interest rate in discounting an award of future earnings to present value.
*1032 D. Pre-graduation damages
The trial judge based his award on Clay’s projected future earnings after he was expected to finish high school and become a member of the full-time workforce. The plaintiffs maintain that damages for the three-year period before Clay was expected to graduate were erroneously excluded from the award. At the outset we must ask whether the plaintiffs’ objection is properly presented for review. It is well-settled that, absent plain error, an appellate court will not consider an issue that was not raised below.
7
Brookhaven Landscape & Grading Co., Inc. v. J.F. Barton Contracting Co.,
III. Joinder
When Janet Harden originally brought this suit, Georgia’s statute vested the cause of action for the wrongful death of a child with the decedent’s mother. Ga. Code Ann. § 105-1307 (1976). Approximately nine months later the Georgia legislature, as part of a larger effort to eliminate statutory sex discrimination, repealed that code section and vested the cause of action with the “parents, when not divorced.” Ga. Code Ann. § 74 — 108(b). The trial judge, holding that the new statutory provision applied, joined James Harden, Clay’s father, under Fed. R. Civ. P. 19(a). We hold that the district court correctly interpreted Georgia law in making James Harden a party to the suit. The Georgia legislature clearly intended that the new code provision apply in proceedings pending on the provision’s effective date.
8
Janet Harden’s argument that the statute, so construed, violates Georgia’s constitutional prohibition against retroactive laws, Ga. Const. Art. I, § 1, H 7, is without merit. Georgia courts have consistently held that the prohibition applies only to retroactive laws affecting vested rights.
Smith
v.
Abercrombie,
AFFIRMED in part, VACATED in part, and REMANDED for further proceedings not inconsistent with this opinion.
Notes
. A wrongful death award is not taxable income to the recipient.
See Norfolk & Western R. Co. v. Liepelt,
. “We therefore reject the notion that the introduction of evidence describing a decedent’s estimated after-tax earnings is too speculative or complex for a jury.”
. In footnote 7 the Court qualified its holding by suggesting that the evidence regarding the decedent’s expected income tax liability may be excluded in some cases: “If the impact of future income tax in calculating the award would be de minimis, introduction of the evidence may cause more confusion than its worth.
Cf. Fed. R. Evid.
403.”
We cannot say that the impact of income taxes is de minimis here. In Liepelt the decedent’s expected annual income ranged from $11,988 to $16,828.26. Here the trial judge estimated Clay’s annual future earnings at $12,500, a figure within the range controlled by Liepelt.
. Because a judge can grasp and apply the intricacies of tax law more easily than a jury, evidence of the effect of taxation arguably will not “cause more confusion’ than its worth” even where that effect is “de minimis.”
.
Penrod
has since been overruled.
Culver v. Slater Boat Co.,
. In support of his decision not to include inflation damages, the district judge cited the principle that the trier of fact is not bound to accept even the undisputed conclusions of expert witnesses.
. Although the defendant does not contend that the plaintiff has waived his contention, an appellate court may raise the waiver issue sua sponte.
See U.S. v. Winkle Terra Cotta, Inc.,
. 1979 Ga. Laws 466-98 states: “This Act shall become effective upon its approval by the Governor or upon its becoming law without his approval, and shall govern all proceedings and actions brought after it takes effect and also all further proceedings in actions then pending." (emphasis added).
. We decide this issue noting that it is not appropriate for certification to Georgia’s attorney general under 28 U.S.C. § 2403(b) (1976).
See Cox v. Schweiker,
