Had a guy one year that thought the same thing.We fished out on ledges and creek bends and never caught a fish over 5 lbs. Took him to a tree I knew that feel over a fence many years ago in 3 ft of water.
It was mid July and 103 air temp. We were throwing 10 inch worms TX/rig. I told him to throw in between the fence post. He looked at me and got mad that we ran a longs ways to fish a little spot in shallow water.
He said I hired you out for one fish and I told you I only wanted a DD. I can assure you there is not a DD that shallow in this heat. I said well we have fished 18-25 ft and we have only caught fish up to 5 lbs so what do we have to lose.
He threw his worm in like kids throwing rocks in the water and was not happy I had him there. I said just fish it. He looks at me a says have you ever caught a DD there I replied nope. He says well there you go.
I said I have caught so many 8-9 pounder's there that one day it will happen. They do not live there but it is like a Whataburger drive through. When the come through here to pick up there order we catch them.
I got a real goofy look from the guy after that reply. Anyhow after about 7-8 cast I see him go on point. He sets the hook and oh yeah she jumps and he took a c r a p on my deck. LOL
We both knew she was huge. Landed the fish she weighed 11.7
After measuring and taking pictures we released her. Pulled back over to the log/tree and I made a few cast while he called everyone about his fish. I caught one over 8 off the same tree.
He looks and me and says well Marc I guess I don't know a lot about fishing cause I thought in no way a fish like that would be shallow in this heat. I laughed and replied that is why I get paid the Big Bucks.
Just thought I would pass this along.