I tried doing a neutral run in Undertale. Undyne wouldn't hang out with me and Papyrus said that she refused to hang out with a murderer. I felt so bad that I had to restart the game. It's now refusing to let me forget what I did.
...This game is GENIUS! It's succeeded in keeping me away from the Genocide run for good by making me feel so guilty that I had to stop my neutral run. Well played, Undertale, well played.