It Wasn't Me - Michael Abrams
My wife is a dog groomer and one day a dog came into the shop for a trim. Despite assurances that the dog would be no trouble, as soon as the owner left, the dog was a nightmare to bath and trim and nearly wrecked the shop. Of course as soon as the owner returned the dog became all sweetness and cute again as if to say "It wasn't me!" The expression in the dog's eye says it all!