Real diving mishaps please

[SmithDiving]

I've never really run out before.  I've had a few occasions when I just couldn't tear myself away from the reef and those instances required some real sucking by the end of my safety stop.  I did once have an interesting "out of air" situation.  I was diving with my mother-in-law in Cozumel and upon reaching the safety stop she reached over and looked at my pressure gauge.  My needle was a little under the 500 psi mark but I had plenty of gas to make a comfortable stop.  I thought nothing of it until I felt my 2nd stage being pulled from my mouth.  By the time I'd turned my head she had removed my reg and was pushing her octo into my mouth.  I tried twice to go back to my own reg but she kept insisting that I breathe off her tank instead.  Looking around, I could see that the rest of the group had showed up and were intensley interested in what we were up to.  I had been married long enough at this point to realize that, whatever her motivation was, I should just accept her octo and finish the stop with her holding onto my forearm.  She claimed that she was just trying to take care of the tank but I still wonder how that dive would have finished if the rest of the group hadn't showed up when they did.