Peanut butter
We’re not sure why this dog has only licked the peanut butter off the toast instead of eating the snack in its entirety, but we can take a guess: he wanted to steal some food off the table, like all dogs do, but he didn’t want to be caught, so he only licked the topping. It even worked for a while, until this person realized something wasn’t right.

Our second guess is that he wanted to pull a prank on his human; in a way, it almost seems too weird that the cat would only lick the peanut butter and not eat the entire toast, and we’re starting to suspect this was a prank, and he was standing there looking at his dad enjoying his breakfast and secretly laughing.