Winston is about 4 months old and a very sweet puppy. He's picked up basic obedience training rather well, and I have no complaints with the training. However, he has developed a habit of peeing on the floor in a particular spot after coming in from doing his business outside. The family assures me that they keep him out a good long time, and that they have used an enzymatic cleaner on the spot where he pees. Apart from blocking off that area does anyone have any other ideas? He has been checked out by the vet and everything is a-ok.