In reply to girlymonkey:
We have a hierarchy of pests. The trouble is, that Pest the First is the cat. He brings in rats (at least we hope he brings them in rather than ambushing them as they cross the floor). Mostly he kills them. Sometimes they don't die well (sprays of bold up the walls). Sometimes they get away and hide. Then it gets exciting and sometimes messy.
This morning's offering was a clean kill - a very large rat
He has also managed a squirrel, several wood pigeons and, most surreal of all, a bright green parakeet. Mice and fledglings are a bit passé in his eyes now, I think.
You can usually tell when there's a rat in the kitchen because the dog looks edgy and the cat looks a touch uncomfortable.
The cat has four bells on its collar that make 4/5ths of F-all difference