Now a little more serious answer...
I have carried a
I have carried a
- line cutter (for guide lines of course),
- classical short blade blunt tip dive knife made of stainless steel and with a proper serrated edge (on search & recovery dives with a line tender; a longer blade would have been better, though),
- wire cutter (underwater dumps) and
- pocket sized twig cutter (when I was diving in the crowns of trees)
- secondary cutting device (as needed)