New form of punishment
I was helping Olivier with his biology revision the other day. He's doing the nervous system at the moment. This is illustrated by a photograph if a dissected 'small mammal'. So I asked him what he thought the 'small mammal' might be. A hamster of course! So now if Olivier (or Jupiter) misbehaves I threaten him with being used to illustrate the next biology text book.

P.S. Jupiter never misbehaves.