Yikes. I haven't even read the EK forum this morning.. almost scared to.
I posted Pat's story mainly to show how important a knife is. I am going to try to figure out one for my wrist region. Maybe Rick or Tom (divers) can give some insight.

Pat is in better shape than anyone I have ever met (yes, including Billy).
It doesn't matter how fit you are if you are pig-tied by line though, you could drown.