Last night a relative was telling a story about something her daughter blurted out, and I didn't quite catch it (she was telling all of us, but I was in the kitchen), but I did hear the story she told after that. Her friend has a little boy who is about four years old, and her friend had her son with her at the mall and they both had to go to the bathroom. So, friend takes the boy with her into the ladies' room and helps him, then tells him to turn his back while she went.
Well, he did turn his back, but he didn't stay turned, and asked with an appalled look on his face, "Mommy, where's your penis?" His mother said, "I don't have one." And he nodded, and said, "That's okay, Mommy. I'll tell Daddy, and he'll get you one for Christmas."