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. But I admit, that is one of the few car accident scenarios in which I have not trained. (We don't really have deep enough water in my covered towns to be an issue... although we did have a car in a swimming pool not too long ago, but that was a first for us... a drunk guy drove down someone's driveway instead of the on ramp to the highway... when we got there, he still couldn't figure out where the highway was... and what a swimming pool was doing blocking the road.) I do laugh at those emergency tools that are now being sold for car owners (that thing that looks like a mutant hammer, it has a center punch, a seat belt cutter, and I'm not sure what else on it). With all the accidents I've seen, any that a person would have a need to use such a tool, they are either not in a position to use the tool, or not in a condition to use the tool (kind of hard to cut your seat belt if you are unconscious with the dashboard in your lap) Personally, I see those as just another sucker product. My same feeling would apply to anyone carrying a center punch specifically to break the window if you drive into water. How many times in the past HAVE you driven into water, and when you did, what was your condition at the time, and where was the location of the punch relative to you, and how long would it take you to get to it vs how much time do you have to escape. All in all, its kind of silly, because the only time you will need it, you likely won't be able to use it. (I carry one not for my benefit, but for that of others... mine is in my med kit in my trunk, so I couldn't access it for myself even if I wanted to) -chris <http://www.mythtech.net>