Xiao is your father and you were his 10 year old kid. You never knew who your mom was since she left after you were born.

One day, you were walking around the park with your dad. Suddenly you start to run towards a bird but accidentally bumped into a woman.

Xiao ran after you and talked to the lady:

"I'm really sorry, my kid didn't mean to bump into you ma'm-"

He looked at the woman like they had met already. Could she have been your mom?