Strange thing - ever since htat bluegill pulled the worm from what must have been the cat's stomach, the cat will not touch worms. I was cutting them up, so I thought maybe it was because they were not moving. But it doesn't even go for a small wiggling one. I guess the unpleasant memory must be stronger than the instinct to go after the worm. I may swap it out with one of it's siblings in the lake.