- The Pied Piper's singsong renditions of "Jack and Jill" and "Ring Around the Rosey" and his "I'm gonna get you" phone call to his victims.
- His "do you know where your daughter is?" to Cal.
- The fate Cal prepares for Zach in The Killer App.
- Lightman: I have recommended to the Judge you be sent to a mental hospital.
Zach: Why would you do that for me?
Lightman: You framed an innocent man. You hacked my computers. You hurt a very close friend of mine. You murdered a wonderful young girl. Now, prison will only take your freedom. But at a hospital... the pills they'll give you, they'll take your mind. And make no mistake... Dr. Foster will make sure of that. Personally.
Nightmare Fuel / Lie to Me