I cant see how it would possibly work. In fact its a pretty hot (no pun intended) topic on hunting sights. The consensus is peeing while hunting or even from a tree stand wont deter game. Many have first hand (again no pun intended) experience doing this and have never seen game be deterred. Were mostly talking deer, but I cant see how predators would be deterred by it either. In fact, most say that human urine breaks down and loses it smell very fast (minutes) because of it chemical composition. Considering your yards are already covered with the smell of human and dogs etc., I dont see how a little more pee is going to do anything. Maybe and I mean maybe in the deep wild it may deter wolves because human presence non existent. But around houses and farms, the animals are used to the smell of humans. I dont have any first hand experience but I cant see how a fox, coon or coyote is going to care if it smell human pee instead of just the other smells that humans leave behind.