Excellent point. And a round or cylindrical object could come loose and roll under the brake pedal at the most inopportune moment.

Not entirely on topic, but I nearly got into a very embarrassing accident one time when I put a cup of coffee on the instrument panel of my car, behind the steering wheel. When I pulled out of the parking lot and turned left, the coffee cup tipped over, so I instinctively grabbed it with my right hand.

As the car attempted to straighten out, the wheel trapped my hand underneath the crosspiece. Unable to go straight, the car continued turning left; I had to jam on the brakes in the middle of the intersection and barely missed ramming some poor innocent driver who was stopped at the lights.

I think my face was redder than the light he had stopped for <img src="images/graemlins/blush.gif" alt="" />

I once saw a car in the parking lot that had a set of darts (as in: what they used to play in English pubs) lying loose on the back shelf. Imagine getting hit in the head with one of those travelling at 30 mph. <img src="images/graemlins/shocked.gif" alt="" />