They cease their roughhousing, momentarily chastened by your overwhelming dominance and bravado.
Your companion gives you a subdued nod in response, as if to say, good job handling those toughs, even though you had nothing to do with their altercation and they probably went right back to what they were doing when the elevator door closed, rendering your intervention absolutely worthless.
No problem, you say. Nice to be appreciated every once in a while.
