Never been asked to sign any form of disclaimer when boarding other boats
Wouldn't even contemplate having one on my boat
As with the 'Plod' thread, and the 'Liferaft' thread, and just about any other thread where certain people jump in, I know what I know and what I don't know, I know who to ask for help from and certain people just aren't worth listening to.
Far too much incorrect information spouted as fact just lately.