When I took my Power Squadron course, we took a fire fighting course at the fire department. It was a great learning experience. They showed us how you would fight a fire on a boat in close quarters. They also told us about proper extinguisher placement, meaning someplace that everyone can see it and grab it if a fire was to start. The thing that I learned the most was those small fire extinguishers are almost useless. They would almost put the fire out and then the extinguisher would be empty, and the fire would start up again and there you are still standing there with a fire and a empty fire extinguisher. They other thing was how many extinguishers that did not work, the firemen told us that this was quite common.