This was COMPLETELY my own stupid fault! I didn't crash but came close. I wasn't paying enough attention, I was looking at a bike going in the opposite direction to me, I thought it was the same kind of bike I want to get next, and when I turned my head forward again I saw that the traffic had stopped moving, and I saw the back of a stopped car coming up really fast. I hit the brakes and I heard the back wheel screech and then the back of the bike quickly went to the right. You have to steer into the skid when that happens, so I did, but the back of the bike then went to the left and I had to steer the other way. I pulled up behind the car and the driver gave me a wave. The poor guy thought it was his fault. It all happened very quickly, the tyre screeching was loud and the unnatural bike movement was scary, but the positive side to it is that I now know that my reaction time is good, and that I'm capable of bringing a bike out of a rear wheel lock up and skid. The rear wheel lock up shouldn't have happened, I pushed the lever far too hard, but since it happened so fast I didn't think of taking my foot off the lever. I'm just glad it all turned out ok! I was really pissed off when I got home and realised I hadn't pressed the button on the video camera for that part of the ride so I didn't get it on camera. Damn!!! Lol.