Here's my "good old zippo" story:
At my parents' cottage a few years ago, I was on the dock with my nephew catching bluegills. The cottage is on a small lot, and our neighbors were having get together with some of their family and people were going back and forth between the two yards having a good time. I leaned over to take a fish off my nephew's hook, and my zippo fell out of my shirt pocket right into about 4 feet of water. I was just about to jump in and pick it up when a woman next door went down with an apparent heart attack. All hell broke loose. My mom and brother are both nurses (my bro at an inner city Detroit ER) and they ran over there to start CPR. Obviously, I forgot about my lighter for the moment. The fire department was a called, and a few of us ran to the end of the little street so they wouldn't miss the turn. It's in the boondocks, so it took about half an hour. After the EMTs arrived and took the lady away (she made it through; props to Mom and bro for taking CPR shifts on her and keeping her alive), we all just kind of let the excitement die down for a bit. A couple of hours later, I remembered about my lighter. I went in the lake and grabbed it. It fired up on the first flick after being submerged for 2 hours. You'll probably need a smoke after medical emergencies, so always carry a zippo and an ER nurse.