What was a beautiful night out on the lake ended up with a trip to the emergency room. In the process I discovered I was not as prepared as I would have liked.
As it was getting dark, I wanted to put on my navigation lights. in leaning forward, I jammed my hand into the horn cleat on the foredeck with enough force to break skin (between 2 fingers). Suddenly, ther I was out on the water, bleeding all over things, and only band aids and electrical tape with me.
I was near a stopped motor boat with fenders hanging of their side. They let me come alongside, had a proper bandage in their kit and towed me off the water.
Luckily, at the ramp, I caught up with two friends who had been out in their boat, and who helped me de-rig the boat an put it on the trailer. Later that night I got 12 stitches, with the PMA telling me about the TransPac exploits of one of her uncles, and the nurse telling me of his years learning to sail off the CA COAST.
The seamanship part is about what to carry. I usually have bandaids stashed in my PFD, and use them for myself and others not infrequently. I have a small 1st aid pouch, but that isn't dedicated to the boat, so that night it wasn't on board.