I recently observed something interesting from my son and decided to have this conversation with him to make sure my instinct was correct:
Me: Boy, do you always listen to what Daddy say or speak?
My son: yah
Me: Everything Daddy said or speak, you will listen?
My son: yah
Me: Everytime?
My son: yah
Me: How about Mummy? Do you everytime listen to everything she speak or said?
My son: errr…
Me: Only Sometime
My Son: yah
Me: So everytime Daddy say something, you will listen everytime and notice it, correct?
My Son: Yah
The conversation ended and it struck me that from that moments onwards, I MUST watch what I speak or say in front of my children or they will remember and follow what I say.