 I have two dogs, a brother and a sister. Rescue both Molly and Willie, okay? When they're in the backyard and another dog roams by them, it would not be unusual to see Willie jump on top of Molly for a few seconds and hump her a little bit. I could stop it easily, but that's the way dogs react with each other. So I know it's embarrassing to have your dog humping your leg, but the worst thing you do is try to shake him off because it's just going to get him more excited. Just walk away. What I'd like to see you do, how old is the dog now?