DanAbnormal

I used to be like this when I started biking, albeit I was 24 but still thrashing the tits off every bike in a straight line and wobbling round corners. Lucky for me I had a huge accident (which wasn't actually my fault) which I survived and realised that I had to learn to ride rather than act a tit everywhere. Not sure what you can do to avoid this situation as all I wanted to do was keep up with my much more experienced mate (wh also rode a much better bike than me) to prove something. I think Bikesafe is a good option and some advanced training with an instructor would be worth its weight in gold as well. The only other thing to do is when you go out with him slow right down but take him on twisty roads and explain you are trying to build up his roadcraft? Just some ideas.