I get the impression that prof X walks around with a clipboard around his neck, a dumbell in one hand, and a plate of food in the other.
About an hour ago, huge chili meal with rice and tortillas, followed by a piece of chocolate cake. Had a beer too.
Every full moon [dont ask] my parents go to the pub and I join them. If that isnt a genuine excuse to have a cheat meal I dont know what is!