This SCP is right what it says on the tin. An anomalous book filled with uplifting stories that will melt your heart. If a sociopath or psychopath or any other person who is nihilistic or lacks morals and empathy read the book, all the stories will be replaced by the words "You cold-hearted bastard." After which will replace that person's heart with a chunk of dry ice.
Give me your thoughts below. Also, I am aware that this seems like a minor anomalous item, but I think it could work.