Perfect

A young son said: Dad, did you know Mummy thinks you're perfect?
Father: She does? Wow! How do you know?
Young son: I heard her say it to Mrs. Smith.
Father: When was that?
Young son: Just before she
Father: She does? Wow! How do you know?
Young son: I heard her say it to Mrs. Smith.
Father: When was that?
Young son: Just before she
Spoiler: