don't praise a dog too soon. Be sure he has finished going potty so that when you take him back in he doesn't go. Praising him too soon could get him excited and he will stop going. If you keep him in a crate be sure the crate is small. If its too big put some sort of division in it so he can just have room to lay down. If its too big he will go in the cage. Take him out after he has been in the cage after he eats and after playing with him. always put him right back in the cage. Be sure to watch him when he is out and don't let him out of your site. They are like little kids and can get into everything.