Stupid Alien obsessed with history

Okay it was a normal day in school and blah blah blah... then we got to Kallang InterChange and i was with Alien and so i took out my stupid book mark from the zoo trip and Alien look at the polar bear which said: My home is melting! :(

Alien: Yeah! My gain is your loss.
LAwyer: What the... You LOVE history a lot hor.
* A stinking bus passed by*
LAwyer: gasp I can't BREATHE!!!
Alien: Yeah! My Gain is your loss.
LAwyer: er... how do you relate with that?
Alien: Oh cos you stopped breathing than i can breathe in more oxygen.
LAwyer: wtf...
LAwyer: hey, you know what... sh... don tell any one ah?. you know that guy... Sh... don tell ah... that guy standing right beside you... he could just be....sh... Chang Wei!
Alien: Oh my god you are Chang Wei.
LAwyer: no i Said RIGHT beside you... as in right...
Alien: aw... i spotted a flaw in your sentence than you flawed the flaw... that means you made it correct again....