The thing that made me start wearing a helmet was the realization that, even if I'm the safest possible bicyclist there's ever been, there's no way to stop the environment from acting against you!

I managed to go over my handlebars while riding down a quiet side street (with no hands, like a badass :/ ), when a gust of wind blew me sideways and caused me to overcorrect and crash.

The Lord protected me on that one and gave me a chance to be a bit more proactive :)