yeh like the ones that were behind you in the que and push thier way forward to be the first on the bus Once an old lady used her walking stick to push us aside!
There are sensors in front of the engine--two was usually standard a few years back--and a sensor(s) behind the engine. Two of the three have to be broken during a collision to blow the airbag. That's why I didn't get bagged when I slammed the corner of my car into the car of one of those stubborn old ladies.