Tear Jerker / Unseen Academicals

• Mr. Nutt's backstory.
  Nutt: But here I am. You asked why I am strong? When I lived in the dark of the forge, I used to lift weights. The tongs at first, and then the little hammer and then the biggest hammer, and then one day I could lift the anvil. That was a good day. It was a little freedom.
  Trevor: Why was it so important to lift the anvil?
  Nutt: I was chained to the anvil.
• You might feel sorry for Lord Vetinari, of all people, after his description of a mother otter and her cubs feeding on a salmon and its roe:
  "...Mother and children dining upon mother and children. And that's when I first learned about evil. It is built into the very nature of the universe. Every world spins in pain. If there is any kind of supreme being, I told myself, it is up to all of us to become his moral superior."
  The two wizards exchanged a glance. Vetinari was staring into the depths of his beer mug and they were glad that they did not know what he saw in there.
• "I wrote it for you." Glenda wasn't the only person crying at that part.
• The Loko business. "Children, which they killed." "Pups, which they exterminated!" Especially when we later find out that the remaining orcs have been hunted and reduced to a few dozen, merely surviving in Uberwald without any kind of organised society or hope of one.