He has been getting on the couch lately even though he knows he's not supposed to be up there. It's usually at night or when we're gone. We've lived here for almost a year now and he's just been doing this the last week or so. Sometimes we tell him to get down and he does, we leave the room and he goes right back up there. He usually sleeps on the carpet, but lately he's preferring the couch or even some piece of clothing that's left on the floor. We can't buy him a bed of his own since he destroys it and humps it.
What can I do to keep him off the couch? I've heard with cats you can use a bitter apple spray. What about for dogs?