Really? Can you tell me any biological purpose for a dog to hump legs?
LOL!
One, according to our vet, is that it is a way male dogs attempt to establish dominance. The same reason a neutered male still attempts to hump another dog, it's the "alpha male" thing.
You have attempted to set up a strawman. Your silly statement has nothing to do with my pointing out that you implied gays are no more intelligent than dogs.
By the way, 'humping' among dogs is often an attempt to dominiate. If your dog is humping your leg, he is working at displacing you as the alpha. Get some dogs together and observe their behavior for awhile. Won't take long for you to see this.