It took two major accidents where you smashed your head on the dash both times for you to stop and think that it might be a good idea to wear a seat belt?
I'm not trying to start the whole seat belt debate here, so don't everybody jump on me please...but I know for me personally, I think one accident involving head smashing would have been enough to get me wearing it...
I've never smashed my head into anything in an accident and I always wear mine.
Hell my first accident which I totalled my car, I remember my neck slightly hurting afterward from the stress of the g forces pushing me forward.
I remember going forward and my head tilting down as my glasses flew off. I always wear my seatbelt, took me not getting hurt at all to know to wear it.