what goes around, comes around.

It has been said that how you treat other people is how others will treat you. It's karma.

Well, what you give is what you will get in return. So, could you please stop judging, criticising, and insulting others as if you were perfectly perfect? Trust me, if you do, some 'sweet' day, others will intentionally do the same to you, or maybe even worse. Wei, nobody's perfect.

Karma will only be a mother-fucker if you were. That's it. Simple right? You do good, you'll get good, and vice versa.