Because Breaking In is very surrealistic at times, it's hard to judge characters like Melanie and Dutch who are on the fringes of regular behavior. They fail to notice obvious signs and react very differently to every situation than other characters, including Oz. This causes lots of randomness to go on, which kind of translates into humor.
I'm not sure what the writers intended, but the sentient copier was probably the least subtle thing I've ever seen. It was obvious from the beginning that Oz was behind it, taking away the mystique of a killer copier.
Score: 8.3/10