For anyone who doesn't know about Dave's Texas Jumping Worms, they are absolutely spooky. The ones I got from Dave a few years ago have thrived in my garden beds -- and they have been quite prolific. They like to stay near the surface when the ground is a little damp. They also grow to near Canadian nightcrawler size. I'm still not accustomed to having them in the garden. If I'm picking weeds or planting seeds, some will jump out of the ground -- and I immediately think "snake." They are much firmer and stiffer than regular night crawlers. Actually, they are kind of brittle, and will break if not handled properly.
They make great bait worms because of their size, ability to stand really high heat, and their tenacity. Dave needs to go into business exporting those critters.