If you've ever been fishing for catfish there's a method of "baiting" that involves a can of dog food.
You get a can of wet dog food tie a ball to it, poke the can full of holes and drop it in the water. In an hour or so drop your line straight down and you'll pull up catfish after catfish.
I think most people frown on this practice and I don't do it myself. I've just heard of it being done.
So Dog food for a catfish doesn't sound all that strange ><