One of the things too look out for whilst on a motorcycle or ATV is unexpected hazards in the roadway.
A Rottweiler on a leash that is apparently way too long gets excited when a dude is coming through the neighborhood at a good clip.
The dog runs out in the road as the man speeds past, causing him to react by swerving away to avoid hitting him.
He loses control, and takes a hard spill.
Gotta hand it to the man though for being able to get right back up and gather himself. That road rash is going to start burning any second.