Kieran's explanation

2 nights ago while changing Kieran into his PJs, I said to him

Mommy: Oh, it rains again!
Kieran: Mommy, it rains so much until flooded right?
Mommy: Yes, especially in Malaysia where many houses were flooded and people have to be evacuated.
Kieran: Luckily we stay in a building on the 10th floor right? So we will not get flooded by the rain!
Mommy: Hahahahaha