NO. I do not believe in poisons. Poisons are inhumane and they often leave an animal to die in the attic or walls of your house, causing an odor problem. When a large animal eats poison intended for rats and mice, they suffer. I think that poisons are a lazy, careless, and ultimately ineffective way to deal with wild animal problems. I use a process called Integrated Pest Management. IPM involves the combined use of trapping, excluding, and habitat modification to take care of the problem. I inspect the entire house and seal points of entry.