So, I've never done anything like this, and can't imagine that I ever would.
However......
The last couple years of my dad's life, he would do it.
He was physically feeble and a leg amputee, but once in a while he'd decide to go fishing by himself and leave his truck/trailer on the ramp.
He'd scoot on his butt to go fishing.
I always worried about him..... but you couldn't stop him and he didn't ask permission.
I'm not condoning it..... But it did happen.