The guy sitting next to me got a beer spilled down his back. He was hell of pissed and IMO had a right to be because while the two friends who's fault it was were apologetic, they were obviously drunk off their asses and then got all pissy when the guy didn't just smile and say it's all good and instead told them to watch the F out and quit drinking so much.
Reminds me of sitting in the Candlestick Park bleachers many years ago. We were drinking those 32 oz Old Milwaukees and having a fine time when my buddy spilled a beer down the back of the guy in front of us. He was actually not as pissed as you might think and he let it go after we apologized. It was later, when my buddy lit a huge joint of Humboldt's finest, that the same guy in front turned around and showed his badge - he was an off-duty cop as it turns out - and said "guys, the spilled beer was one thing, but you've really gotta put that joint out!"
He was pretty okay overall.