I saw a rodent once, climbing up the exterior of a apartment building in board daylight and disappear though the 4th floor.
Why 4th floor, but not the rest below or above?
You may want to try a electronic rodent repellent. I used to have one that can switch frequency so it can either drive away
cockroaches or rodents. They probably still sell them at Costco, Home Depot, and other hardware places. This post has been edited by Stinky12 on Tuesday, Jan 31 2012, 19:51