I hope that person was promoted to manager.

If you mean the "prank"ster, I wholeheartedly agree.
Don't prank strangers for your silly youtube channel. Your friends might think you're clever, but society at large does not.

For free, too.

you can only act like "the better person" for so long

There's "being the better person", and there's "teaching a douchebag that continuing to be a douchebag is unacceptable in modern society".
The correct choice was made this day.

Agreed! I've made a promise to never work in hospitality ever again. I wanted to do this on a daily basis, how rude people are to you like you're a slave. To be honest I think usually she woulda just dealt with it and they just happened to catch her 'snapping point'. Luckily I work with animals now. I don't care when they make a mess for me, cause at least they don't do it intentionally.