Um, this has happened to me a few times. The best
way to stick it to a team you dislike is to beat
them. And beat them with class. And to always do the
exact opposite of whatever it was they did to offend
you and to extend this etiquette to whatever team you
play. However (and if this is a practice provided for
in the rules of wherever you play, then ignore this
next bit), this does mean not to yell STALL. It is
disruptive, and it is rude to the officials. After all, they
are the ones doing the officiating, not you. But,
most importantly, this is just a game. Don't let some
jerks in it get you down or too pissed off.