Bill is completely serious about this one. I was the DM on that same boat on a different day when the same diver came up to me and asked for a lift bag to pick up this great anchor he found with lots of chain. I reminded him about picking up our anchor last time and he assured me that this anchor was not attached to our boat. He even said he followed the chain and didn't find any rope attached to it.
I waited till most of the divers were up and let him go back for it. Guess what!!!! It sure was easy to pull the anchor after that dive with a lift bag attached to it!!!!
Oh well, by the time he got the anchor lifted, all the divers were back on the boat except him.