Up until about ten years ago Mike we were still doing stuff like that, but after several friends and then my mum getting proper mashed up in accidents we just decided to sell our bikes. It was a big decision at the time, but we've adapted.
However the last few years health stuff have made me think "why not, worst it can do is kill me", and I don't think I would be such a loony on a bike now that I've matured and become sensible!