One time, my friend opened a bottle of water and it fizzed and smelled odd. But I guess that probably wasn't the cafeteria faculty's fault. XD
I can't think of anything like that happening to me. Although, that food always did make me sick in high school.

But when I think of cafeteria food, the principal and assistant principal at my high school come to mind, covered in ketchup, mustard, and chocolate milk as a result of the food fight the senior class had that year. That was a great day.