We are the proud owners of 2 male bullies. One is several months shy of 4 years old and the other is 8 months. The younger of the two is neutered however the older bullie is not. They are healthy and well socialized. They came from a reputable breeder. Regular visits to our Vet. Updated immunizations and health care tells us this. Just last week we took our bullies to a local groomer for nail and paw care. We bath them ourselves. Since that visit upon returning home, the older bullie has been attempting almost non stop to mount the younger one. He's acting the way a male would act around a female in heat. He has never done this before.We thought that perhaps the younger bullie picked up a scent at the groomer and bathed him well. This proved futile. The older bullie is still "humping". Do males go into heat? We understand that this behavior is sometimes an expression of dominance, but the older bullie established dominance early on. We have scheduled an appointment with our Vet. to have him neutered. Aside from the positive health implications, are we doing the right thing and will this solve the problem?