p00kiethebear writes: "Dear Slashdot. Remember when you learned that Santa Clause wasn't real? I have a wonderful and beautiful girlfriend. She treats me so right in every way. We've been together for almost a year now and everything seemed to be going perfectly until this morning. Over breakfast we were discussing dinosaurs and she told me a story about how her grandfather, fifty years ago, dated footprints of a dinosaurs and a man that were right next to each other to be within the same epoch of history. I laughed when she said this and then realized that she wasn't joking. She seriously believes this. She believes dinosaurs and humans walked at the same time together. Her grandfather told her this when she was little so regular logic and wiki isn't going to be able to contest her childhood dreams that she has been raised to believe. The odd thing is that she's not religious, it's just what her archeologist grandfather taught her. More important than just backing up evidence to the contrary, how do I explain this to her without crushing her childhood dreams? Is it even worth discussing it further with her? Have you ever had a loved one or family member that believed something that made you uncomfortable?"