Boards
Once and never again
Lists (and optional justifications) for food and other things you've tried once and will never go back to.
Pot Noodles - Decided to try one while I was at uni, as my housemate had a stack of the things. Just plain disgusting.
Big Mac - Bowed to the pressure of my girlfriend a few weeks ago to try one. It's just a double cheeseburger with some nasty sauce on. Double the price too.
McDonald's Apple Pie - had a free one when they did the Monopoly thing. Not sure a pie is something that should be deep fried for 8 minutes. Just had an overwhelming taste of cooking oil to it. A bit grim that they get cooked in the same oil as the chicken nuggets and whatnot too.
Your mom, obviously.