This summer I have fished a lot. During one trip I caught about a dozen fish in my net for bait. I hooked one on and left the rest in the net in the water. After fishing for a while I got a new baitfish, hooked it on, and a few minutes later I headed back toward the net. Suddenly I stopped, looked at the net and there was a big 3+ foot long water snake with his mouth attached to a baitfish. Problem was the fish was in the net and the snake was out. At the time I thought it was a cottonmouth, but it was most likely a common water snake (grayish brown w/ irregular bands). I kept my distance as I crossed the creek and went to higher ground. After a few minutes I saw he wasn't there anymore so I cautiously went back and pulled the cord on my net from a distance. The snake had left and I emptied every fish out and never let baitfish sit in the water again.