Just for information: We picked up a rat in Flagstaff AZ and tried every device known to man to catch him while he had a steady diet of apples, peanut butter, bacon etc and chair cushion for comfort. We did not want to use poison and deal with a dead rat that we couldn't find. He stole the mouse trap bait, ate his way out of the biggest glue traps? Electronic repelant devices were like music to him. Rat trap? Nope, he read the label "Danger rat trap" and totally avoided it. We finally caught him in a live trap in Denver, CO.