If you could enforce one rule of etiquette, what would it be?
Submitted by S@ngarang.

Closing your mouth while you eat. I swear to god its like burrowing a drill into my forehead and then pouring petrol and salt into the hole. I can't stand people who chew with there mouth open. Its just. Argrggggh. People who do this should be forced to eat food through a straw, but then they would probably slurp when they got to the end.

That pringles advert where they used to crunch the crisps used to drive me round the bend as well.

I'll be quiet now.