Remedies for Hazardous Guests
The Venomous, Divorced F.O.B. and M.O.B.
If you sense an imminent tantrum, play one of those happy, humbling, all-ages-welcome, group-led wedding dances (i.e. the Electric Slide). Even if you’re not Jewish, cue the hora. Being thrown up in a chair will release endorphins, and thus kill some of the pain.
From the Summer 2008 New York Wedding Guide