I was just riding home (in rush hour traffic) and going downhill at 20mph at least.

As I was going through a particularly bumpy intersection (downing & speer), my semi-slack chain popped off. I've had this happen before, but usually the chain falls off to the outside and I just use my brake to stop. This time, the chain lodged between the cog and spokes and my feet locked in the middle of spinning at top speed. At first, I didn't even realize what was wrong, but I was sliding and fishtailing like crazy. Fortunately, I managed to stay upright and come to such a controlled stop that it probably looked deliberate.

My tire left a nice long mark on the road and a distinct burning-rubber stench in the air. There's even melted rubber surrounding the flat spot on my new tire.

I had to get out a screwdriver to pry the chain loose and I was actually amazed at how little damage was done to the spokes and chain. They're pretty cheap, anyway. I'm just glad I didn't eat asphalt.

This has probably been discussed before, but please share your own stories of chain drop skidding.