Ok, so he is 8 months old and he USED to be fully housetrained, but over the past few weeks he has become retarded and forgot how to use the bathroom outside!! Please help me figure out what's going on... Ever since that little Chihuahua from next door came into our yard when he was outside and he got to smell her (uhhh you know...she was in heat) he has become stupid to everything but that smell. All he wants to do when he is taken outside is smell everywhere she has been and lick it...(ewww) When I take him outside for a long walks sometimes he will go poo like he is supposed to, but most times he will wait till we get back inside to do his business, like last night literally not 2 min had passed when we got back inside and when I had my back turned he eliminated right in the middle of the living room... I take him out before I go to bed and sometimes I even take him when it is really late, like 11pm at night, I usually stay up till 2 or so and I will always take him out before bed, and long walks at night when it's dark. I am trying to figure out why he has resorted to this behavior. He is a wonderful dog and I know this is a fixable problem. The only thing I can think is that getting him neutered will help, but is it too late to fix the problem? I don't know when I will have the money to get his neutered...I also know that getting a crate will also help solve the problem, he has never been in a crate and I know he will HATE it at first, but I know that it will work. I have never had an intact male dog, always got them neutered before they were 6 months old, so I don't know what types of behaviors to expect. Any insight into this would be greatly appreciated as I love my dog, but if I can't get this behavior problem under control, I will be forced to get rid of him.