How do you know?

09.08.2010

A week ago, Topaz was not feeling well and he followed mama who was sending nene to see dentist together with Orion. On the way back, Mama passed by Assunta Hospital.
Mama: Topaz, this is Assunta Hospital. This is where your daddy was born!
Topaz: How do you know, Mama? Have you been to there? How come you know that?
Mama:....har har....

How come Topaz does not know that Mama is Daddy's Mummy?? Harrr...