On the phone:
Daddy: Whose birthday is it today Alyson?
Aly: Isabell's (and indeed, we were getting ready for Isabella's birthday party)
Daddy: And whose else?
Daddy: Mommy's birthday!
Aly: It's not Mommy's birfday, it's Isabell's.
Daddy: Say "Happy Birthday, Mommy!"
Aly: (to me) It's not ore's birfday Mom.