Boating Problems

We had some excitement on the lake on Saturday. My neighbor launched his boat, and then tied it up on his dock. After an hour or so, he came out to see the boat sunk! When they launched the boat they forgot to put in the drain plug. Everyone forgets to install the plug once, but most of the time the missing plug is discovered at the launching ramp.
After some work the boat was removed from the lake, and taken away to be dried out. I went down to help, so I could get the pictures.