I just found this thread, and thought i would cast my story for IDMWT #91.
actually, i have two entries, though there may be more times than i can remember.
As there are not any Honda specific service/sales locations much nearer, i buy most of my parts and supplies from a Harley service/sales store, that also services Honda (though i service my own bikes, most of the time). so anyway, i had just pulled into one of the special motorcycle only parking spots, proud of my 84 GL1100 Interstate (don't own anymore), and i kicked the side stand down, not knowing it had bounced back up. i climbed off, and my bike suddenly got a lot heavier than i was expecting, and down it went. right in front of a crowd even.
the second time, was with my current 88 GL1500. I had it up on the center stand working on it, and when i was done, i rolled it off the center stand, but a gust of wind caught it, and pushed it away from me. i watched in horror as it slipped from my grasp, and down it went.
in both instances, no real damage to me or the bikes.