I laughed so hard watching that video it reminded me of what I did once.
Many years ago, there was a 18 foot daysailor with a fixed keel appx 6 feet below the hull called the Minuete. The 80 year old owner wanted to buy a trailer which I got but no extension which I suggested. He wanted me to launch against my wishes; ohterwise he would not buy the trailer.
Anyway, I got a running start and then hit the brakes trying to jerk that boat off. It did not come off and I put the parking brakes on and in park on an automatic. The water was 4-6 inches above the bottom of the door. I left the engine on so water would not come up the tailpipe with all those sounds and rummbling emitting below the water. I went out the window and swam to the back. I tried to get the boat off by rocking it. Well I forgot about the boancy of the trunk and the back end of the car floated up and was floating back as I was looking at the boat. Someone Yelled, CAR 54 you are sinking. I turned around and saw the car floating with the motor running. Withe the engine running, it started to sink motor down first like the Titanic and sank. I will never forget the final gasp of the engine coming to a stop. Only 2 inches of the car was still above water. It took three cars with hemp rope (oops! line of course) to pull me out with the bottom dragging and only the trailer still attached. I first opened the door to let water out and came out a 20 pound striper. I drained the trunk out and then was pulled to the top of the hill. I said why not and tried to start the engine and it did. Now for the rest of the story as Paul Harvey would say.
When I got back to the shop, my employee called everyone around Smith Mt. Lake and became known as the submariner. I could but only laugh. However, the film crew at the marina as they were filming What About Bob with Dryfus and Murray in the film actually got it on film and wanted it in the movie. Dummy me should have said yes but embarrased me said no. 6 months later, my daughter who was 8 at the time was embarresed to ride in the car as everything was falling apart and looked horrible. That can of nuts to make the horn work was the piece of resistiance. She looked at me and said, Daddy, we need a new car. Realizing this, I took her and bought a new suburban. They would not take my car in trade. I wonder why.
To this day I still laugh about all that.
Crazy Dave Condon