Once we walked over a big longkang (drain) and I told Jayden..
Me: I need to carry you or you gotto hold my hand and you need to listen to me. If not then you'll fall into the longkang and then I cannot see you anymore.
JD: ooo fall in the longkang then cannot find me edi?
Me: Yes. Inside the longkang got cockroaches, got rats, got many dirty things and they will bite you and you will die you know?
So when My maid was sent off:
Jayden: Where is ning cheh cheh?
Me: She went home edi.
Jayden: No! she fall in the longkang edi!
Me: Nolah.. she went home
Jayden: No.. She fall in the longkang edi.
When my niece wanna go back to her own house:
Jayden: Uwaa... I don't want jasmine to go. I don't want Jasmine to go!
Me: No.. she need to go home. Cos she need to go to school ma.
Jayden: No! Jasmine fall in the longkang!
So from that onwards, if anyone or something is missing, everything is Fall in the longkang.