Dr. Grumpy: "Happy birthday!"
Mrs. Taubeta: "Oh, is it someone's birthday?"
Dr. Grumpy: "It's your birthday."
Mrs. Taubeta: "I have a birthday coming up, too!" (looks at Mary) "Well, have a happy one!"
Mary: "It's your birthday."
Mrs. Taubeta: "Really? My birthday is next week, too! What a coincidence."
Dr. Grumpy (giving up): "Well, I hope you have a happy one."
Mrs. Taubeta: "Thank you. And to you, too. I'm sorry you have to work on your birthday."