Acid tongued
Relayed from a friend, working in a hotel at the time. Couple out for dinner in the restaurant, gentleman diner unhappy with particularly poor and surly service from waitress.

Waitress (having taken order): "Anything else?"
Diner: "Yes. A lemon for you to suck on"
( The Vomiting Hitchhiker Mephistopheles is such a mouthful in Manhattan, Mon 28 Nov 2011, 15:15, 3 replies)

That's not devastating
it's just rude.

Besides, it doesn't even make any sense - if she's sour-faced, the last thing she needs is a lemon.
(leviticus no longer likes the cut of your gib on, Mon 28 Nov 2011, 15:21, closed)

I think the implication is that, even a sucking-a-lemon face would be less pinched & bitter

(moon monkey is busy making memories worth repressing, Mon 28 Nov 2011, 16:50, closed)

I bet that worked really well
And there was absolutely no snot, saliva, urine, etc. in any of the food she subsequently served him.

Honestly, politeness to those about to serve you food is basic common sense. Wait until you've eaten it (or tried to, if it's bad) before complaining. And even then, only complain about the food, not the people serving & preparing it (until you're absolutely sure you intend to partake no more).
( shinyshinyscalp less a man, more a way of life, Mon 28 Nov 2011, 17:30, closed)