Catching Hairy Crabs

[pterfloth]

I have at least two hairy crabs I would like to catch. Have tried the leaning glass with bait for over a week but no luck. Any other successful methods?

They only come out after dark and are much too quick to grab.

[spreerider]

if you can take the rock out and put it in a container, they may leave looking for water,
or you can spray soda water into the holes and flush them out.

[new but handy]

I had to pull out the rock and get the little dirt bag with tweezers and a turkey baster. Took awhile but I got it