This video is from 2011 so you might have seen it already, but like all good classics it's worth a second look!
Denver is a dog who can do many things, but lying is not one of them. The face when his master discovers what he's done is priceless! His only crime was stealing the cat's treats, but the evidence he left was too obvious.
As if that were not enough, as his master discovers the crime, the first thing he does is to directly interrogate his pets to find out who was the culprit. Denver's sister has the perfect poker face. But as soon as the owner looks at Denver he knows immediately who was responsible. Not only is he hiding suspiciously in a corner, but there is a most telling expression on his face. At least he accepted his punishment like a man!
Bless your little doggy heart, Denver.