im trying to get my puppy to go through the doggy door. he watches my dads dog go through and then starts whinning when he cant get through. ive pushed him through and showed him treats on the other side. he will walk through on his own if the door isnt in the way and its just a hole in the door but as soon as the door is there he wont push it no matter how many times i push him through so he can see he needs to push and he sees my dads dog go through. he doesnt even try and push the door just sits on the other side and sulks and i eventually after about 5 minutes of trying to cox him through with a treat have to lift the door up and he will climb through.
i have tried walking away and waiting for him to come through but he just sits and sulks or walks off to look for another way in.
what eles can i do or do i have to just wait for him to get used to it and persist with what i am already doing.
our other dog learnt to go through so easily.