Of course not. He wouldn’t notice if a badger took residence in his desk. (The animal, not the student)
Obviously we only want to do this because then Arvels grades will improve if he can spend more time in that classroom. Basically doing him a favour!
@Zennon Baros and @Leda Layton I will give you both 200 galleons if you sneak into his office and not get caught. But you didn't hear this from me.