My pup really hates having his collar on, Ive been putting it on him for 2 days now for a few hours and then taking it back off. He constantly scratches at it. How can I get him used to it? When I put his lead on him too, he just sits there, how do I make him understand he has to walk. He cant go out yet as he only just had his first injection but Id like to practice it with him round the house.