Greyhound
Registered
You're 100ft deep in a 12l tank, you're OOA and your buddy is nowhere to be found. You start a CESA, exhaling slowly and breathing the air your tank gives you as the pressure lowers.
And how come you've lost your buddy? Isn't that what buddy pairs are for - to look out for each other and help in emergencies? Otherwise you might as well dive solo.