As a child: Resonstituted asparagas soup. My mom MADE me eat it. I was stubborn, but when she reheated the soup for the third time, I decided that I would starve to death before she would give in. I ate.....and then she had to mop the floor.
As an adult: I am not sure what it was (could have been morels ??) It was a brown, gritty, lumpy thing and it was certainly not what I thought I had ordered (we were in France). I drank the entire bottle of wine and never managed to eat the food. Most expensive meal I never had. lol