Okay Why “Missy”?

I have many names and nicknames. “Missy” happens to be one. My son Christopher couldn’t have been more than 8. In his best grown-up voice he was giving me a lecture about something. When he realized I wasn’t paying much attention he said, with his hands on his hips, and I quote , “You’d better listen to me, Missy, or you’re going to be in big trouble!” I lost it! I started laughing so hard I almost cried. “Missy” has stuck with me since then. Does anyone else have a funny story about a nickname? I’d love to hear it! Post stories in the comments section.