Speaking of trough urinals, I remember when we went to go see Big Head Todd/Alanis Morrisette/Dave Matthews Band at the old Mile High Stadium, which still had the giant bathtub-shaped trough urinals. It was basically a huge vomit-fest in the stands because a bunch of dumbasses drank their asses off and then baked in the sun, one poor girl got absolutely covered Nickelodeon-style by some random idiot in the seat behind her.
Anyway, my friend and I went to go get shirts during Alanis's set because we had no intention of watching her, but we didn't put them on, just slung them over our shoulders. I get separated from my friend at the men's bathroom and met back at our seats. He hands me his concert tee and it's soaking wet. I'm like "Dude what happened?" He said "It fell in." I immediately throw it back at him and was all "What the f***, man!?!?" He said he rinsed it thoroughly in the sink but still...!
The show itself was...fine. Definitely the grossest concert I've ever been to, and I've seen shows at the Lion's Lair.