Mine's pretty cheeky. The other morning she ate my packed lunch out of my rucksack just before I left for work. I only popped out the room for about 30 seconds. It wasn't so much the theft, but how she was when I came back into the room. Usually she does 'guilty dog', but this time she sat in the middle of the carpet, wagging her tail gleefully, crumbs all up one side of her face, and burped at me. The cheek!