Some good ideas, thanks all.

One point, I know that a knife resides in it's sheath when it's not being used, I was talking about the possibility of accident when using it attached to a lanyard. Might be worrying about nothing but I have a mental picture of using the knife and then something happening, tripping, boat moves, etc. and suddenly you've got a very sharp knife dangling at the end of a tether where one could easily roll onto it or end up impaled on it.

Like I wrote, it might be worrying about nothing that's why I'm asking.

John E