toth8: Other people can do it, so then I can too.
alright, so then here's the situation:
you're picking on a child, because the child pisses you off.
the underlying principle of this action is, "it's ok to pick on somebody that pisses you off."
so, then,
an observer who is sympathetic towards children will get pissed off at you,
and your principle gives them the right to pick on you.
it's parallel to that whole, "if stealing was moral, nobody would steal" thing.