No, he is ever the gentleman. Doesn't mess up anything, doesn't scratch anything, eats whatever I put in front of him. Loves everyone. But he is very lonely now and yells when he can't find me (even when he knows I am sleeping). Your cat sounds like it is having "moving" issues. They don't like change at all. Put out a couple "temporary" cat boxes and give him lots of love and he will be fine in no time.