All this digging out old stuff from my past as a Chicago Rock Cafe DJ in the 90s reminds me that they used to have this thing called “Chicago Cats” or something. Basically, the bar staff would work out a dance routine to something awful, like “Greased Lightning” and at some pre-appointed time, probably midnight, the DJ would put on the record and the “Cats” (ie barstaff) would stop serving drinks, get on the bar and perform their dance routine.
It was, without doubt, the most excruciating thing ever.