When it comes to these critters I don't know where to begin. Years ago as a telco tech with AT&T, I was on a trouble ticket for no dial tone. I isolated the issue to inside the house, a short in wiring on one leg of wire stapled around the house. I checked it out and was stunned at the size of the rat that had died on it while trying to get under the siding into the attic. Its big ass butt and tail were hanging out, unable to get up or out. I kept looking at the small crevice between brick and siding and wondered how in hell did he even get halfway. In our garage there is a spot behind the washer that has obvious chew marks in sheet rock, no mice made those marks and is frightening. I can't physically move the washer to fill the hole with foam. Our garage door right there has the rubber thing on bottom that is easily crawled under by a rat from what I've seen above. Once they get into sheet rock they get into house walls and attic. Traps in garage right there caught several in one night but only one rat per trap then they got smart, they are proven in labs to do that.. I've read a pair of rats can breed 85 young ones per year. Long and short of it, have anyone of you ever used the baits with these stations. Thanks