I've got two access holes (about 6 or 7 inch diameter) leading under my trailer. Finally saw a woodchuck, or groundhog, crawling under the trailer.
I'm not all that pleased with the idea. How to take care of the critter? Living in a mobile park, firearms, handguns, grendades, dynamite, and anthrax spores are discourged. Though, high power lasers may be acceptable if used during the daytime.