When I was 18, times were tough and I would often eat what I caught or shot as food, and was really glad to have it.
I was fishing in a 3 acre pond, had three bass on a stringer. The large bass was close to five pounds and I had the stringer in the water over by the spillway. I was on the other side of the pond, and every few minutes my fish would splash. Not thinking too much about it, since the water was pretty shallow where the stringer was I took my time fishing and then meandered over to collect my fish.
I reached down and pulled my stringer up, and half of the large bass was gone! The stringer hadn't been out of the water for ten seconds when the biggest snapper I ever seen came up our of the water with a real throaty hiss..like he was saying "give me back my dinner". I had no desire to dine after him, so I granted his request and tossed the fish back to him.