Black boxes {are|should be} a good thing. "Leaky Black Boxes" however (like angular), are awful. I quite like having a black box with two sockets on it, that

Black boxes {are|should be} a good thing. "Leaky Black Boxes" however (like angular), are awful. I quite like having a black box with two sockets on it, that I can plug cables into and have it just do whatever it's supposed to. However, if the sockets are a weird shape, or there 39 of them, or they leak a strange green ooze, then I get upset.