Aiyoh! So fast ah! Since when you become so smart?

Almost said something so mean during meeting this morning when Mr Pink was being explained to about something, which he exclaims "I never heard about this before" - something/a process which we've explained at least twice during meetings and once when I helped him out in his first ever staff training. He took in 10 seconds worth of explaining from a fellow programmer, Mr Angmo and said "oh...I understand now". Luckily for me, my brain works faster than my mouth at that point in time else it would have been really embarrassing. Anyway, 15 minutes later, the "oh...I understand now" turned into some weird case of opposite comprehension coz he started to asking strange questions - as usual. I tried keeping quiet throughout the entire LIVE demonstration of the process by Mr O and Mr Angmo. Keeping a straight face was easy. It wasn't funny anymore when things start getting a little too repetitive. The difficult task at hand was keeping my stupid mouth shut and not blabber further sarcastic remarks. As a matter of fact due to his "I never heard about this before" he concluded that he has never taught/explain this so important work flow during his training from since months ago! No wonder my stock quantity is producing the strangest of all results. I'm wanting to hire a hitman anytime now. Anyone has contacts?