Circa 2016 I was at my old school to fix a computer. They were renovating, and had finally retrieved the unopened milk my buddy had thrown up into the lunchroom "light shelf" (lights that ran the perimeter of the room, recessed in a weird thick shelf thing) in the mid 90s. The section of "the shelf" was there, now on the floor. It was the most horrific food related thing I have ever seen.