how is he when you brush him. has he been like this from a puppy. i would sit in the living room get him to sit and put the harnes over his head and gve him a treat then take it off, then put it back on and give him a treat. do that several times. then when you think he is happy with that move on to trying to put it on properly.
what is he like if you were to rub him the way you do with the towel after a walk but with out the towel
what is he like if you were to rub him the way you do with the towel after a walk but with out the towel