Remember kids... always wear a helmet. (The almighty bikeradar helmet thread)

So what you're saying is that you started wearing a helmet, and then mysteriously, for no good reason, two weeks later you had a crash? Sounds well dodgy. I've only ever had one crash (touch wood) and that was when I got doored by pax getting out of a cab into the road without looking. I was wearing a helmet at the time. Having heard your story, my suspicions are definitely aroused.

Can we definitely rule out conspiracy? What if the helmet manufacturers put tiny brain-manipulating electrodes in helmets that make wearers crash more often so they'll tell everybody about how their helmet saved their life and keep buying more and more of them?

I think the bastard manufacturer's maybe using some hallucinogenic glues, that fuzz your brain, for 3 or 4 hours, so that hey are undetectable by the time you are seen at A & E...