I've had a running battle with rats for 20 years. First experienced them living in an old farm house rental when we were first married. They were runnin thru the duct work and sounded like a herd of deer. Chased those down and shot em in the basement. Also had em in the garage at that house. Never paid em no mind till I took the cover off my 1000R Ninja in the spring and they had eaten all the rubber off the foot pegs and handle bars. Meant war I tell you. Found out that 3 #2 coilsprings fit very well in the bottom of a galvanized watering pan. Spread some grain around the bottom and killed em off within a week.

Now I got em at my house. One winter they decided that all the vacuum lines on my wife's mini van made a good snack. They also think that the flexible insulated ducts that run thru my crawl space are for chewin on. SOB's, kill em all!.