What happened to you?

To go to and from the washroom, I need to walk past my boss' room. This afternoon, he waylaid me and called me into his room.

Boss: Eh alamak, what happened to you man?

Me: Huh??

Boss: Alamak! You used to stand up tall and proud and walk upright! Now look at you, everyday I see you looking so 'lembeh' and hunched. 

Me: *lol* Now I'm like that cos I'm having a backache mah. You should see me in the morning when I have more energy haha.

Boss: You're like a changed person! Shorter too, now cannot wear high heels right? *guffaws* 

Me: *zzzzz* 

I'm so different now meh??? No what...

P/s: his favorite singlish expression is 'alamak'. No points for guessing...:)