Just so we're clear, I wasn't trying to rain on anybody's parade...but I did mean my suggestion to be a serious one in this sue-happy day and age we live in.
Personally, I don't believe any contrived waiver statement would stand for much in a civil lawsuit by a group of parents who are suing because one of their kids was shot, or burned, or whatever..."we didn't understand the dangers, didn't really understand what we were signing", etc...remember, OJ was totally acquitted, but in spite of that was then burned at the stake in a civil lawsuit.
It was just my .02 cents