Doc, I took the liberty of checking the laws of Mississippi:

§ 97-29-31. Indecent exposure.

A person who wilfully and lewdly exposes his person, or private parts thereof, in any public place, or in any place where others are present, or procures another to so expose himself, is guilty of a misdemeanor and, on conviction, shall be punished by a fine not exceeding five hundred dollars ($500.00) or be imprisoned not exceeding six (6) months, or both.

Again, the exposure must be wilfull and lewd. Accidents are accidents.

I used to patrol an area that had visible cross-dressing segment. I have stopped men who were wearing very short skirts with nothing underneath. When they were walking down the sidewalk making accidental exposures, I'd give them a friendly but firm warning and they'd be on their way.

I've also stopped men who were "hanging around" groups of young children at a wading pool who had their genitals "accidentally" hanging out the leg of their shorts. Needles to say, they didn't get a "friendly warning."

The point I'm trying to make is it can be very situational. I REALLY don't think the average kilt wearer has to worry about prosecution because of a stray breeze.