Heartwarming / Postal 2

• Yes, shockingly for a game like Postal 2, Paradise Lost has a couple of moments in the endgame. Just after the two Dudes are finished arguing, the Bitch grabs Champ and drags him into a portal, resulting in this exchange.
  Cory Cruise Dude: Are you crazy enough to follow the Bitch into that? Just for a dog?
  Rick Hunter Dude: Watch me.
• The next moment comes right after the Final Boss, where the two Dudes comes to terms with one another and admit that they aren't so bad after all.
  Rick Hunter Dude: I wouldn't have expected that coming from you. I suppose I appreciate your help back there.
  Cory Cruise Dude: It's no problem. In retrospect, I think we may have a bit more in common than you think.
  Rick Hunter Dude: Well, maybe there's some good in that twisted mind of yours after all. Thanks.
  Cory Cruise Dude: Trust me, it was no trouble at all. I regret nothing.
  *they shake hands*
  Rick Hunter Dude: Neither do I.
• The entirety of Paradise Lost can be considered this, seeing how the Dude is doing all of this just to get his dog back.
• There’s a achievement in POSTAL 2 for saving the marching band from a suicide bomber. Doubly so as this is one of the few times you’re rewarded for not killing innocent people.
• Hell, playing a Pacifist Run in general. Despite the game openly encouraging your Going Postal, the Dude can go the whole game killing nobody. While nobody in-game will appreciate his tolerance, the game acknowledges you by calling you Jesus at the end. And should you complete a Pacifist Run of Paradise Lost, the Bitch will have an epiphany and apologize to The Dude for everything she had done.