Ugh, saying "never again" to food is what got me over weight! The more I tried to resist, the more likely I was to have it again in larger quantities.
That said, since becoming a quasi-vegetarian (with an unfortunate desire for chicken sometimes
), I will never eat beef again! Or drink milk. It only took like a month without milk to find it disgusting.
Also, I'll never eat a whole pizza again.
I'll never eat a whole bag of chips in a day again.
I'll never go to TWO fast food restaurants to get takeout for one meal again.
I'll never eat a whole pint of ice cream again.
I'll never eat more than 2 servings of something again (I still sometimes eat two servings though... sometimes they are so small and two really doesn't hurt me calorie-wise!)