Funny story and nobody died - Buddy and I found an old anchor right off the beach about 30' of water- We come up and discuss recovery - he suggests lift bag. Next day at dive shop borrowing lift bag...he holds it up and I say "Ain't big enough!" - he says it is and off we go. Clowns that hang around dive shop decide to follow us and watch recovery op. We go down hook onto anchor, fill bag with air and anchor stands up, but won't come off bottom. We go up to re-evaluate technical aspects -of course I say "I TOLD YOU SO!". he says we should go down grab it, inflate both BC's and extra lift will bring it up...stupid me I say ok. We go down both wrap arms and legs aroung shank, inflate both vests and up we go...very slowly. get to surface, lift bag lies over and deflates...down we go again....or at least down I go. Buddy let go of his end...so many bubbles and viz so bad I don't realize this. Sink back down to bottom alone. Get to bottom, realize buddy not there...typical reaction is to put hands on hip and say "DAM!".....in doing so, let go of anchor, BC still full. Guys on beach (after they get done rolling around and shrieking with laughter) say I cleared the water enough that they could see the tips of my fins. Missed my partner on the way up, but I got him on the way back down....