About a year ago Martha managed to hit one of them while it was climbing up the wall with a stick but it got away and died the next day.
They have not been around for the last few weeks perhaps because its been quite cold. They seem to have more fun in the loft during the summer.
I saw a much cheaper "catch it live" rat trap at about £6-95 that a friend had bought to catch her hampster ( when it gets out of the cage! ).
I do have some rat traps like trad mouse traps but bigger. I think I may have tried one before with peanut butter but they did not seem interested or perhaps knew what the trap was.
Tony