Humping on other dogs

[Aldroids]

Yes, a dominance thing. If you don't like it, go to your dog and correct him or her. A quick touch, or say no, and push him or her off the other dog. If he or she does it again, correct again.

[Sagemother]

Wouldn't it be better to remove the dog from the area?

A quick touch and "no" still lets allows the dog access, for lack of a better term, to those he wants to dominate.
Wouldn't the consequence carry more weight than a simple scolding?