This thread brings back memories. I was in gradeschool, having lunch, and we had chicken patties or something that day. They gave out the little mayonaise packets. Since they make them near impossible to tear open I started twisting up my packet. After a few good cranks the mayonaise erupted out of the top of the packet 16 ft up and got on the ceiling. I had to spend my recess cleaning the lunchroom. Also witnessed a foodfight in highschool. What a mess! I am just glad that I didn't get hit with anything, being the angry person I was back then..things would have gotten pretty ugly.