I was almost blown off the road once when a Chinook helecopter flew way too close to me while I was riding on an army post in Korea. I really thought I was gonna crash, but somehow I managed to stay up. If it had been straight from the side, I would've hit the dirt. I did think it was pretty cool though. Its the most wind I'd ever experienced.

The helecopter pilots have to have a certain amount of flight time each week and a lot of that is just spent hovering around the post. So I think the pilot was probably just bored and wanted to see what would happen if he flew over someone on a bicycle.