Well, when I first put anything on Lucky he went wild. I mean he really would run around pulling it off, getting it in his mouth and chewing it, roll around and around. Each day a few times a day I would put it on him and try to get his mind off of it by playing or giving him a treat or just anything I could think of. Well, after several attempts he starting keeping stuff on longer and longer until now he doesnt pay any attention to anything I put on him. It took awhile but it was worth the hassle. My father in law said he couldnt believe how Lucky wears stuff now. We never thought he would.