NAUTICAL UPDATE FROM CJRUN
As I try to change over from a corporate type to a full-time Boat Captain, people occasionally send me stuff. I have seen a lot, in the 26 years I've been a Captain. I once watched a spit-and-polish Marine Patrol officer back his boat trailer down a ramp, stop with just enough trailer to step aboard from dry pavement and keep the crease in his trousers, start up the boat, back into a river, and slowly sink, as he had forgotten to put in the plug. Anybody can forget the plug; we've all done it at one time, or another.
However, in all that ime, I have never seen this. I thought I had seen it all, until somebody sent me this photo. Technically, boats don't come with directions, you're supposed to know certain things, before you launch your boat: