A couple of years ago I stepped off the sidewalk curb onto the parking lot at the local Safeway. Hit a patch of black ice and slipped. I was gratified the 'ol football reflexes were still there lo these many years later, and I instinctively lowered my shoulder and rolled into the fall. Groceries flew and I went head over heels, then rolled back to my feet.
Had I had the sense to stay down, I could probably be eating free food for life. Three employees had reached me within seconds, and I think they were astonished I didn't call for a lawyer.
Shocked and amazed, they were! - Congratulations!