I got my dog from one of my friends I went to pick him up he was abused by his other owner at first he would poop and pee outside but now as soon as the snow feel he waits right after we take him out to go in the house! I don't get it I bought him a little sweater but it's a pain to get off him so how do I get him to go outside? Or can I get him something like a litter box like you do for cats? Help me this is my first time owning a dog!