We had a Cub Scout bon fire this past weekend, I was tempted to put up a sign:
Unsupervised children will be burned as fuel.
Very few problems, but it amazes me how lax some parents can be with their children around open fires.
There is a Mexican restaurant here in town where the waiters walk very quickly carrying huge platters of very hot plates of Mexican food. There is a sign that clearly says, "Control your children. We can't always see them, and we are not responsible for accidents if you fail to control your children."