had that happen last year, was out shopping with my wife and on the way home just had to stop for a pit stop, and too cold out to "find a tree" along the side of the road (ha ha)
so I stopped at a Speedway gas station. On the way back to the Jeep, I stepped off the sidewalk with my 1st foot/ and as SOON as I picked up my 2nd foot, down I went.
elbows hit the ice covered asphalt, head hit the concrete sidewalk that I had just stepped off of.... and was slick enough I couldn't hardly get up off the ground.... I'm not that big, 5'11 and 225#.....