Encounter in the lift - Learning Experience

I left home with viv. While in the lift, the door opened.
This guy came in with his two sons. About 2-3 yrs old.
The small boy was asking his father alot of qns in mandarin.
The younger one pointed at his father's watch and said: "爸,WATCH. "
Then he look at the buckle of his father's belt and asked: "这个做社么"
Father: "Tigh - ten loh"
The kid: "打灯...O....有灯的哈!"
Everyone in the lift burst into laughter! kakakak...

Moral of the story: When you answer to your toddler's question in the future, try to answer him in the same language.