This guy works on his bike, while all of a sudden a lightningbolt strikes in his neighbourhood.
Probably the current of the lightning induces a spark from his startcoil and shocks him.
It scares the hell out of him.
You can see the spark hit him.

http://www.break.com/index/startled_by_lightning.html

Thats mad, id have went back inside after that fucker, geez!!

Nice! Though why was someone taping him working on his bike?

I thought that was a bit suspect, fake perhaps?!