Doctorfish
Contributor
There is a difference between "touching" someone else's gear out of possible interest, and active tampering. Laying hands on someone else's gear without permission is a misdemeanour, turning someone else's gas valve off is a felony: it's attempted murder. I'd certainly be very very vocal and public when I found out. Not only would I broadcast to everyone on the boat, but probably everyone in the local dive community. I'm upset just reading this thread. The diver who did this is a moron and the more other divers and captains who know it, the better.