Squirrel sought in hit-and-run that stuns cyclist.

I was on my way to the library to return a copy of Hunter S. Thompson's Fear and Loathing in Las Vegas, which I'd finished reading in O'Hare airport while waiting for my flight to decide from what gate and in how many minutes it would be leaving.

I was on my bike.

I was on the sidewalk.

I was passing a yard that was not on a level with the sidewalk, but rather ran about a foot above it, the boundary with the sidewalk consequently made up by a concrete ledge.

A squirrel did that thing that squirrels do, where they dart to the edge of the road in front of a moving vehicle and then at the last second, Ohhh, no, it's too dangerous, it's too dangerous! Peril, peril! and they scrabble back across the yard the way they came.

This particular squirrel made it across the yard, launched himself from the concrete ledge, attached himself by all paws to my calf for a split second and then executed a perfect flip turn back into the yard and away.

Perhaps he saw the bats?