What is the worst meal you have ever been served?

[KurtNYC]

Not necessarily eaten, just served as in you ordered food and they put something in front of you with the full expectation that you would eat and pay for it.

An example:
Soon a plate arrived at my table, but something was not quite right. I sampled a fry. Clearly it was of the Ore-Ida frozen-and-microwaved variety, but it was edible. Next, the mushy peas. Well, I didn't expect a lot from the peas so they weren't much of a disappointment. I picked up the "burger" and took a bite. The patty was grayish with brown specks. Its consistency was that of a shoe pad. The taste was not of meat, yet it was strangely familiar. It took me a while to place it: This was the same burger I'd eaten in the elementary school cafeteria. For 50 cents, growing 8-year-olds were subjected to these patties -- seemingly made of soy and meat refuse -- plus a little Styrofoam cup of red Jello and a carton of chocolate milk. No wonder I never grew past 5 feet!

http://dir.salon.com/travel/food/feature/2000/03/03/mushypeas/index.html

For me, I had the misfortune of ordering a "giant burrito" at a corporate cafeteria. I did not know at the time that the cafeteria vendor had lost its contract with the company and was just going through the motions until their time was up. They took a plate, dumped chopped tomatoes on it, dumped about half a head of shredded iceberg lettuce on, bland cheese, then exactly 4 small pieces of chicken that looked like "nuggets" without the breading. Then he placed a tortilla over this pile (so I wouldn't have to look at it). That was declared to be my burrito.