Mr. Khoo's family

Whenever di di or ko ko ignored my words, I'll called them loud by their name directly :'Mr.Khoo Jun Er / Mr.Khoo Jun Yu, are you listening ?' One day, when I'm busy with my house chores, suddently I heard someone called:'Mr.Khoo Mummy, where are you ?' It is ko ko ....hahahah....since then he will start calling everyone in the house with Mr.Khoo 'someone' like Mr.Khoo papa,Mr.Khoo gong gong or even Mr.Khoo baby ! ....kekekekek.....well, since I'm the only lady in the house so got to follow majority to become Mr.Khoo as well...ahahahha....