Today in the sad but funny department:
I have spent the last 20 minutes pointing out to Mom that the vacuum cleaner sitting in the corner is not a dog, cat, human or horse. She is adamant that "that animal is not moving!". I walk her over and show her that is, indeed, a vacuum. "Oh, I beg your pardon!". As she sits back down she says, "Even if it is a vacuum, it still isn't moving."