If you missed out on the opportunity to cash in when the Chinese took rats off restaurant menu listings during the olympics and drove rat lovers to the black market to satisfy their desires for good eats, we'll be glad to dispose of your crop.
We can trap them, poison them, exclude them with physical barriers, or drop off a hungry cat on a long leash. What we do depends on your situation, with pets and physical structure the key determining issues.
The foam was to close off access. The access was to the left, behind the dishwasher. The pipe in the rear middle goes through a large opening to the crawl.