No Punching for the Wicked?

Ok, so apparently it is considered faux pas to have a punching/kicking bag in the lab.  Now, granted, the faces of the faculty that were rotated through on the target of the bag was more the issue, but I thought that when I was faculty I would have complete freedom of decision.  bah.  There is no true freedom anymore.  This wouldn't be a problem if they would have just let me use an undergrad intern with body armor as a realistic fleeing opponent.  Is Opponent the correct word when they are actively trying to get away?  hmm.