This is the way Barry Currie does it at the Pageant, where he is a doorman and bouncer: Spotting trouble, be it a malcontent or miscreant, he puts on his best face and assumes a calm disposition, one that comes very naturally to him. He's like that horse whisperer or something. He approaches, places his hand on the evildoer's shoulder, firmly but without malice, and informs him that, sorry, time is up. "You are going to have to leave now." His size -- a solid, big-boned intimidator -- works as the unspoken Enforcer, and the calm in the heart of his eyes, which also comes naturally, serves to lower the testosterone to acceptable levels.