picking locks

[Eric Smith]

Chris wrote:
> Although I can't dispute this idea, I've been curious exactly how hard it
> really would be to open a car door under water. You have air pressure
> inside the car trying to escape, and although the door would be slow, it
> shouldn't cease to open.

You've got a lot more water pressure outside trying to get in.  If the
water and air knew how to cooperate to change places, it would be easy.
But they don't.  It's going to be really tough to open a door against
that pressure differential.