Inside Joke

I was talking to my daughter while Sofia was coloring. (She listens to every conversation and doesn't miss a beat.)  I was saying today was Aunt Sandi's birthday and I had ordered a "Harry and David" fruit basket for her." Sofia interrupted the conversation and said "Excuse me Gramma but you made an mistake. It's not Harry and David it's "MARY and David". (Mary is my bff and her husband is David).