My little guy is a year and 5 months old and was neutered last January and he has started marking. He hasn't done this before and the only thing I can think of is he stayed with a friend of mine in August that has 2 male dogs and since then he has been marking things around the house. What can I do to stop this? I can't take him to anyones house without his "diaper" on because I am so worried that he is going to mark at their house. Someone please help...
