In the deep south , they do a thing called 'grunting' for worms .
They drive an Oak or Hickory stake (about 6' long) two feet into the ground , usually around lakeshores or riverbanks (kind damp soil) .
They then take an old leaf-spring (that they've ground a series of 'rachet-teeth' about 1-1/2" long) and push it across the end of the stake .
The vibrations it creates makes the night-crawlers come up to the surface , after which they become bait .
It's weird to see , but true .