Shaun McLane just posted a neat list about some obscure Disney facts on Listropolis blog. Some are new to me, like this cheeky one:
5. Flash Mountain - No, not Splash Mountain, Flash Mountain. Flash Mountain isn’t really a place. It’s actually a phenomenon where woman flash their breasts as they’re going down Splash Mountain. It’s much more common than you’d expect, and if you watch the logs coming over the drop, you’re bound to experience Flash Mountain. A picture is snapped as you go over the falls, and now they are heavily monitored for flashes, middle fingers, and gang signs. If any of those show up, the picture won’t print, and you’ll be left with only a story to tell.
You'll just have to go to Listropolis to find the Flash Mountain link as it's NSFW.