Ah, fun and danger. Of course the two are often one and the same, so the line between them is sketchy at best. There is much to be learned from direct experience and living with the consequences of one's actions. But then again, trips to the ER are never fun. As in all things, it's a matter of finding a balance which is unique to every ankle biter (until they get old enough to scare the shit out of themselves and wise enough not to tell you about it).