Lois: Give one of them special privileges for no reason.
Sgt. Hendrix: How does that work?
Lois: It's really pretty neat. The others don't know why he got special privileges so they start doing everything right just to catch up. Then the one you singled out starts getting suspicious and paranoid and he starts informing on the stragglers.
Sgt. Hendrix: That sounds pretty good. You mind if I steal that one?
Lois: Yeah, be my guest. You know another good one? Let them pick punishments for each other. It exercises their creativity and keeps them from ganging up on you.
Sgt. Hendrix: Nice.
Lois: You can also take their breakfast, lunch and dinner, put it the blender and grind it up into a gray paste. Eventually, they eat it. That's kind of fun.
Sgt. Hendrix: You are an artist.
Lois: No, I'm just a talented amateur.
Sgt. Hendrix: I wish I could help you. I wish I could just open this drawer up and show you the information you need. But I can't. It's got me so frustrated that I just want to stare intently out this window for, oh, say... 120 seconds.