dragon king

Mr Lim: Where is Mr. Black? Is he absent again?
Students: ..yes...
Mr Lim: Is he MIA?
Students:...
Mr Lim: THATS WHY AH...you don't go swimming for fun...

I shared looks with my math classmates. Nobody mentioned he was swimming -.-'

Mr Lim: Aiya...this Sujath ah...when swimming, what happens if he gets taken by the dragon king? That's bad enough but what if the dragon king makes him his son in law?
Students: *WTF faces all over*
Mr Lim: Also you guys lah. What if the dragon king makes you the son or daughter in law?

The boys at the front all gave a WHAT? face to each other.

I have no clue what it was about and to this day, he is still talking about this dragon king but seriously, its hilarious. This joke came from nowhere, thats the trouble. We don't get it.

Hence, more funnier to me.