I think froze's point is if you are moving at 25 mph and try to stop yourself by sticking out your leg, you will not stop, your leg will be twisted back. I almost did that one time, I spun a golf cart on wet grass on a hill, had it on two wheels, stuck my leg out without thinking... had it really gone over on its side, my leg would be broken for sure. No way was I going to be able to stop that thing from flipping, especially at speed. I would have done better to keep my arms and legs inside the vehicle, as amusement park operators would say. Luckily it came back down on all four wheels and all I needed was a change of pants.
[edit] Risk Mitigation Planning: Determining ahead of time who you are going to blame for screwing everything up. You ain't the only software geek in the house.