Become the innocent person in a stolen food game.
Nick some of their tasty foodstuffs, and bin it/flush it/whatever and let them try to figure out who done it, it obviously wasn't you, you don't eat meat.

This would work especially well on the odd pepperoni pizza or lamb and mint grillsteaks or any other lush animal-based-food-product.

For bonus confusion points, quickly cook some up at night or whenever you can and leave a bacon-dripped plate and frying pan out in the kitchen.

It could NEVER have been you then.
(Mensa Reject has gone out, I'll be back on, Tue 23 Sep 2008, 0:57, Reply)