My husband and I adopted a neutered male lab mix 2 years ago. He is now 6 years old. I can't seem to get him to stop peeing in the house. I tell him "no" when I catch him doing it and I immediately make him go outside to go potty. It seems he purposely does it sneakily. Tonight I brought him outside to go potty and he was outside for 15 minutes and he would lift his leg to potty but nothing would come out so I assumed he just must not need to go. It was less than two minutes later I caught him peeing all over our dresser! I'm losing my mind. Why does he do this? And what can I do to fix this problem?