something new everyday

I taught father something new today...

I explained the term 'sai kang'

XD

"Sai-kang" : Noun. Colloquial (Singapore)

[Definition]

1. Resolving screw-ups.
2. Refers to jobs outside of one's job scope.
3. Extra generally unimportant duties

[Usage]

1. I can't believe I am clearing his sai-kang for him.
2. I cannot get any proper work done because I am stuck with this sai-kang.
3. My boss gives me all the sai-kang, like making me pick up his dry-cleaning for him. I think he doesn't like me.

[Spin-off]

"Sai-kang warrior": Someone who is always saddled with time-consuming unimportant work.