I have to admit, it's a little hard to imagine the circumstance that would allow a cyclist to just leave his left crank-arm and pedal sitting out there near the curb like this. I mean, clearly there was a missing crankarm-fixing-bolt, and I suppose that it's possible to lose one of those, (although I've never done it personally,) but how does this happen and you don't just reach down and retrieve the thing?
What's the most likely? Was it:
- the cyclist was walking his bike and didn't notice;
- the cyclist was walking his bike and too drunk to notice;
- the cyclist had his bike on the back of his car;
- the cyclist was riding and he and every bit of his bike except the left crankarm and pedal was hit big-time by an alien abduction ray;