Wow, that's crazy!! I'm sorry that you are having to deal with it. We find peanut butter works the best! Peanut butter with seeds mixed in.I am VERY upset. I have a very nice, 200 dollar mini fridge, that I use in my closet to keep the kids from over-eating things like string cheese, chocolate chips, etc.
Well, now I know why my daughters cat was basically LIVING in my closet.
Apparently, rats moved into the house after the big rain storm we had and all the flooding. The little buggers ATE MY MINI FRIDGE. RUINED THE ENTIRE THING. Ate through metal, plastic, a drawer, and the back elements.
We had rats move into our garage, and they ate the wiring in our front loading washing machine.
We moved. We've been keeping the rats out of the house and coops, but they decided to eat the wiring in one of our cars - the wiring to the battery. How do you put traps in car engines?