Same rule for my casino and a quite a few others I played at. I wouldn't call it a Bad Beat story, more like a lesson learned story. When you got that much dough on the table, unless the waitress is Pam Anderson, you better pay attention. As a matter of practice I like to declare my hands when it is a big pot, so the dealer knows what hand they're looking at. Sometimes (most are guilty of it), when you look at a board some hands just stand out at you and you don't expect someone to be playing K4 off.

As for the other player, shame on him. Its a game and you should expect to lose. It is far worse to be the pariah of the casino (if you're a regular) and pull that kind of stuff. I hope is son needed a kidney transplant, then at least the money would have been good for something instead of going up his nose.....