You got to love all those locks on a cardboard door. What are people thinking?
My wife gets all freaked out when the garage passenger door to the backyard isn't locked. It has a dog door in it big enough for our 80 lb. dog to get through. If someone wants in bad enough to face a large dog, they will simply crawl through the dog door.
One time this burglar wanted into this house with a really secure front door so he drove his truck into it smashing it to smithereens. If someone want's to get in your house, they will.