Yeah, I have a question about that, if someone(clown) is cutting wires and letting people slip is it justified to vent him?
Killing a character is not an appropriate reaction to minor destruction of property. Remember, the player who is the clown dosen't have too many options for doing their job, which is to create levity and add an unexpected element to the round by playing pranks, and surprising people with harmless hi-jinks.
REMEMBER: The clown is usually doing their character's Job. Despising the clown is perfectly fine, and can add to the story the round creates. Senselessly killing the clown because you can adds nothing to the round, and forces one of your friends to have to sit out the rest of the round. The interference the clown creates is an intended part of the game, and can help level the playing field a little bit between experienced players and new players. It prevents you from always knowing what to expect.
It is additionaly inappropriate to just kill a character because of their profession since antagonists are assigned without regard to it. By slaying the QM because he keeps placing orders, you may be taking out the antagonist of the round without RPing the round.
Should Security officers be mobbed because they walk around with weapons?
Clowns should be subject to standard space law.