Do you mean voles or moles, Rap? Surely it is moles that tunnel and damage lawns isn't it? Don't voles live by the riverside and in fields? Maybe not in your neck of the woods!

Jasper Carrot tells a wonderful story of him sitting up all night with a torch and a shotgun to catch a mole coming out of his lawn. Trouble is he was in a wheeled office type type swivel chair and when the shotgun went off he found the meaning of 'for every action there is an equal and opposite reaction'.

:D