• Hagakure's first scene in his social link has this little gem when he attempts to predict Naegi's future:

Hagakure: Your child and my child...will share the same mother!!
Naegi: No! I will never allow it!!

  • Genocider Syo is a goldmine for these; using Makoto as a punching bag during a Relationship Values moment, and describing Togami's underwear with a Godot quote come to mind.