I don't close my door, it stays open 24/7. I'm pretty confident in my set up for predators. I've had raccoons and possums dig around the run, but give up because of the wire apron. Plus my run and all of the openings are 1/2" hardware cloth, the run has a solid roof also. I still see them in my yard on the game cameras, but they haven't shown interest, trying to get the chickens anymore. I'm still out there in the morning and evening, checking things out. I just don't have to worry about being home, at a certain time of the day. I don't have to rely on anyone to look after my flock, when I go on vacation either.