I have two dogs and one of them listens to me and can sit and lay down and does all and his brother won't listen at all. He keeps peeing inside and starts fights with his brother and makes his brother uncomfortable by humping him. What can I do? I tried locking him in the back room when he is bad and that doesn't seem to work. I yell at him and I grab him by the ear and lock him outside. I am not sure what to do, so far he doesn't poop inside just pees. Help!!