My coop is an enclosed building but has a dirt bottom so I put land timbers around the base of the perimeter. It sits up against the woods and in a year I have not had any casualties to preditors but now I have seen a rat inside and also it has dug a couple of holes into the coop. I am trying to decide the best way to eliminate as many as I can and as safely as I can .... I don't want to get a cat because I have a dog that might kill the cat and I'm afraid the cat would do more harm to my chickens than rats....I don't want to do traps because by putting them on the outside of the coop, my dog would probably "trip" them or it would kill other animals that I don't want killed.... My mother told me about these bait LOCKBOXES that have a key. The box is really big and the bait is in blocks so the rat will come inside, eat bait, and leave. They are supposed to be safe for other pets because the pets can't get to the blocks to eat on and it's not like pellets that could get scattered. I thought it sounded easy to do so I ordered 2 baitboxes and some poison blocks and 2 traps that actually fit up inside of the box that would instantly kill one rat at a time. How does this sound to anyone else???? Any drawbacks from this method of ridding my rat problem?? I thought about putting one right up against one of the rat holes alongside the wall where they usually travel.