We've all seen someone broken down, in need of a push. It happens to everyone, you run out of gas or your car suddenly stops and, unless you can coast into a parking lot you're screwed. Once I ran out of gas while I was at a stoplight in the middle lane of a busy road, my car almost got hit more than once (I got the hell out). At the time I thought that one was bad, but yesterday I was walking back to work after getting lunch and I saw someone that needed a push more than anyone; his car was diagonal, blocking both lanes of traffic going the opposite direction on a busy road. I gave him a push.