When I was working on my rescue diver I thought I was going to have a heart attack! I was at Loch Low Minn quarry which is about 20 miles from where this accident happened.
This is the scenario. I lot my buddy during the dive. I surfaced to notice he wasn't there and descended to find him or something like that. I found him unresponsive on the bottom. It was around 50 ft or so. Since this was a real person of course he had his reg in so I didn't have to worry about keeping it in. I reached for his BC quick inflate only to find out he had a problem with it during the dive. He was wearing a dry suit, but was diving with a stainless backplate and steel 130s so he wasn't wearing a weight belt. Something had happened and his hose was disconnected from his dry suit. I fully inflated my wing, grabbed him, and tried to swim to the surface and he didn't budge. It took a full 2 minutes or so of me orally inflating his wing before he started to become neutrally buoyant. By the time I wrestled him to the surface I was panting and out of breath. Once on the surface I had to blow a couple more breaths in his wing to keep him on the surface. Then I had to tow him in while giving breaths and chest compressions, and removing gear if possible. Once next to shore, I had to carry him out of the water and start to adminster O2!
I thought I was the one that was going to need rescue!