This one time at band camp...
For real, back in the day many many times at band camp, before band camp, after band camp, and basically all year any chance I got I was doin' the nasty with my girl in every instrument storage closet, isolation booth, mezzanine, and eff, even on top of the freakin' piano in the band room. The best part is I was a section leader, and so you might imagine where that went.
Actually, she was a really nice girl who I ended up seeing for a very long time. All for the best it ended, but at the same time definitely not a girl I will ever, ever forget!