Revenge?

So...something keeps nibbling through the wires of the fairy lights that run around the verandah on the house.Yesterday I fixed the lights by the shower and today I found two more broken wires.I thought it was Galore up to mischief but Will thinks it is rats.I haven't heard any rats in the house or ceiling for ages but we did catch a mouse again the other day.I have put my rat trap outside to see if I can get the scoundrel!