Only serious crash I've had is on a Kawasaki ZX9R on the Betts Way roundabout in Crawley in 1999 after it had rained. I was in my 20's and full of bravado. Me and some mates had spent the day scraping our knee sliders and after a quick downpour I was first to head out.
Charged into the roundabout, tipped it in, knee down and lost the front...plastic everywhere and a DID exhaust can ripped off in the process. That was bad enough but mates were stood by the roundabout and added to the embarrassment with their piss taking. Ultimately it was my own fault so took it on the chin, it cost me loads though repairing the bike as I was young and didn't want to claim on the insurance.
Lesson: Don't show off.
By the way, anybody remember when we could sell worn sliders on ebay? Nice little earner that.