"On my second date with a guy he told me he saw a UFO once and was absolutely positive aliens exist. I asked him to tell me about the UFO, and he said it had blinking lights and as it moved slowly across the sky, it left a trail of dust behind it. What he was describing was clearly a plane, so I laughed, assuming he was messing with me.
This upset him, and he asked why I was laughing at him — it really was a UFO! When I realized he was serious, I asked, “Are you sure it wasn’t just a plane? It sounds like a plane.”
His response: “Oh, yeah. I suppose it might have been.”
We broke up later that week."