hi
your worms will only try to escape during the night, so if you can get a bin liner, then great.
otherways to prevent worm loss (if they are in the shed or garage) is to leave a light on, alternatively if you have a box big enoughto place the wormery in, will prevent the worms from going too far.
if none of the above is available try getting some newspaper or cardboard, and make it wet, then place it underneath the wormery. any worms that venture out will go and live there.
You won't need to replace them, as they will breed really quickly.
thanks for the tip, we will certainly take it on board.
I do believe however that we are the only wormery company that actually tells you that your worms will try to escape, and how to prevent it.
Not all customers worms will wander, and usually your worms settle down within a few days
Best of luck
Ronnie