After I graduated from Pitt, I moved to Atlanta. A group of us from a sports bar took a bus trip and went to see a Tech game vs. Maryland. They gave away free seat cushions. After Tech scored their first TD, the fans threw the cushions onto the field. The refs warned that the next cushion to hit the field would result in a penalty.
After the extra point, my buddy, who couldn't hold his alcohol, grabbed the cushion from the guy in front of him and threw it. It hit the ref on the a$$. Instant flag - 15 yards!
That's what I think of every time I see that stadium.