Our 5 month old male goldendoodle puppy invariably wants to mount practically every dog he meets! Girl dogs, boy dogs, he doesn't care! He gets so crazy, happy to see, & play, with the other dogs, it practically sends him to a frenzy!! But he actually started the behavior really early on, like around nine -ten weeks old!! At the time, the vet said it was all about dominance, but now, I'm not so sure. At puppy school, he is the only dog trying to initiate this behavior. I immediately get him to stop, but honestly, it's really embarrassing!! We'll be having him neutered next month, but I've heard sometimes that stops the behavior, and sometimes, not. Anyone else dealing with this??