Wrong. Don't agree with it.
I can however agree with drawing on them with a felt tipped marker while they are passed out. Bunch of instructors and I went drunk bowling friday night, and then went back to the club room and watched Borat.
Paul, the guy in question was decorated with noodle's and a few other lovely scribes courtesy of his loving friends. It washed off, of course but we ragged him the next morning saying "Hey, you nick yrself while shaving?"
But shaving, thats a bit far.