Here is a great example of some poor bastard that was on a bike that was vastly beyond his capabilities. If you watch the crash you'll see he did exactly the wrong thing, steered the handlebars the way he wanted to go and wound up going off the road in the other direction. Been there, done that, in 1973 on a Honda 350 at about 40 mph. Luckily no one filmed me doing it. :-)
http://www.btinternet.com/~bodman1/crash.mpeg