I remember during childhood a group of us neighbor kids climbed into an old truck that looked like an old milk delivery truck.  We took turns playing the driver by twisting knobs and pulling levers.  After a short while, we all jumped out of the truck and went about our neighborly business.  Later in the day we saw a tow truck pulling the old milk truck back across the road and parking it where it use to be parked.  Boy did we get in trouble with the owner. That was the last time any of us thought about climbing in any vehicle to play driver ;-)