Eh. Most violent situations can be stopped with social engineering as long as you are willing to act and can project calm and authority. Key is to get the wind out of their sails before they get themselves all worked up.

"I can call you a cab now or will I have to call your mother later?" . "You will leave on your own, or me, Mack, Tucker, Qill, Zane, Lara, and Tom will walk you to the door."

"Fire!" this works quite well at making backup materialize.