In my third year snowboarding, I was racing a couple buddies down a set of moguls that intersected at a ninety-degree angle with a nearly flat green, then continued into another set of moguls like a t-intersection. There was a train of baby skiers shuffling along the green at a crawl, so we naturally stopped to give them the right-of way. Myself, being in first place at the time, halted at the bottom of the slope and waited for the others to follow.
And by "halted," I mean "hit the edge of a mogul wrong and slid down the last few yards on my face," and by "waited for the others to follow," I mean "got up to find all my friends and an entire class of baby skiers laughing at me."
Not the worst crash I've been in, but definitely the most embarassing.