I got moth balls and put them all over the engine compartment then I found out moth balls are like fire starters little napalm balls. Extremelly flammable. So I took them all out.
I have a 2014 ford explorer parked next to my landcruiser and it was sitting for two months. I went to drive it and it didn't work. A rat had chewed through my entire main wiring harness under the hood. It was a costly fix. Luckily didn't touch the cruiser.