At the convenience store I worked at, I had someone flop on the ground and SHRIEK when her crap came up to $6.66.
Thrashing and howling like a toddler that didn't get candy. Not nearly as cute when it's a geezer idiot being a dumbass. (And I hate it when kids do it.)
She finally knocked it off when I threatened to dump my soda on her to shut her up, and went to get a five cent piece of candy. I nearly had to re-soda her to get her to bugger off afterward because she wanted to lecture me about how I should fix the cash register so THAT NUMBER!!! never came up again.