Hi, I hope someone out there can give me some guidance. I have a 6 month old Yorkie male. His potty training seems to go great during the day. I take him out every 30 minutes or so, or if he gives me the "look" It's the evening that is the problem. He seems to forget all about training after 6PM. He just squats wherever with no warning. I get so frustrated because I know he can do it when he wants to. Any advice?