I have done a low on air share donated my secondary secondary... nope not a typo. I had an AirII and an alternate as the AIRII is useless for sharing. Back then I had a different reason for having one not related to this thread. Diver signaled low on air. I had heaps so we shared to get closer to the exit (surfacing into boat traffic was a greater hazzard). Near the exit he resumed use of his system keeping us both safer for the exit over rock platforms with heaps of wave action. It went quite smoothly but made me appreciate the reason for having a longer hose.
I've had one instabuddy go OOA and it was one of the most bizarre experiences ever. I got "stuck as a third" to a pair of jokers who dived together regularly. I saw diver 2 motioning to diver 1 and grabbing for his gear. I though he was joking around so did diver 1 who kept heading for the surface. When I surfaced to find out what was going on... diver ! was giving a blast to diver 2
then he swam off leaving him behind OOA with pretty rough surface conditions a long distance from the exit.
I stuck with Diver 2 knowing he was OOA and figuring the other guy who was steaming away from us was probably in better shape.
As we got closer to the exit.. Diver 2... yeah the OOA diver advised me he had just passed his Rescue and DM training. At this point he said considering the conditions he would tow me in!
I said NO THANKS! I nearly had to fight him off as he expressed his opinion that conditions were a bit too rough for a
Lady Diver!
By this time I was fed up enough to point out that this
LADY DIVER had enough gas remaining to do the entire dive again AND make it to the exit underwater.
There was no way I was going to have everyone on shore see me get towed in.
Needless to say I gave an earful to the Dive manager who had teamed me up with them
and never dived with them again.