My two dogs love a snack with peanut butter each morning before I leave the house. Lately our male cat has decided that he wants to join this ritual. I would break off a small piece of beef lung and he would run off with it. Now he sits on the counter and acts like he wants the peanut butter. He watches the two dogs sitting on the floor licking and licking...so I put a little peanut butter on his mouth. He licked it off. I wasn't sure if he liked it or just had to clean it off but he keeps coming back so he must like it. Can the peanut butter hurt him?