Given my relative newness to bikes I'm sorry to report that I cannot recount any similarly amusing binning stories. There wasn't much laughworthy about my single off last year, although my mates at work all seemed to derive amusement from it!
In a vain effort I feel duty bound to at least try by recounting a fall my SO had from her mountain bike which is at least 2 wheeled. A few years ago in an attempt to 'enjoy' one of my hobbies she decided to have a go. I thought we'd break her in gently with a couple of laps around Sutton Park in Birmingham one fine Sunday morning. After a surprisingly enjoyable hour or so I decided she was ready to take on 'the wall'. This is a sandbank in the park about 20 meters high and almost vertical which they use for sprint training and the like. However many of the MTBers in the park also use it as a kind of mad adrenaline rush thing as there is a jump at the bottom which is very difficult to avoid once you've taken the plunge over the edge.
My instructions to her were to hang her butt over the back tyre and under no circumstances touch the front brake. I went down a couple of times to show her what I meant and then she was off. She'd literally just got the back wheel over the edge when she panicked and grabbed the front as hard as possible with predictable results. To make matters worse, on it's way towards her head the saddle managed to whack her in a 'sensitive area' and the lads at the top who could still stand gave her a huge round of applause.
Suffice to say her mountain biking is now limited to canal tow paths and the like. Oh yeah and she earned the nickname 'Keystone Cop' after treading on a rake whilst locking the bike away a couple of weeks later :)