I threw some soapy water on the ground once and when I happened to look about 5 minutes later there were about 15 nightcrawlers almost galloping away from the spot, they hated that soap. I don't know how good they would be for bait or even if they live or not. Whenever it rains hard enough to drive nightcrawlers out of the ground to where they are all over the streets, for the next week or so you can find billions of them in the gutters wherever sand and leaves and junk have managed to settle out and not get washed down the drain. Sam