What cooking experience has made you say "I'll never do that again"?

I tried to make polenta once. It wasn’t meant as a test of my family’s loyalty—or endurance—but man. I can’t even remember now what the problem was, and that’s okay with me.

Sugar cookies: I said I’d try again when I’d forgotten the last disaster. Thirty-two years and counting.

Prime rib for a holiday meal, so underdone that I felt like it ought to be laid in a coffin. It was six months before I could face red meat again, and I’d still rather have oatmeal.

Turkey soup from a whole carcass, simmered four hours with lots of nice vegetables. Straining out all those little bones, ye gods. All I could think about was the poor fellow’s family and friends and how sad it all was. I threw the whole thing out.