Justin Bieber..Clumsy Clumsy

So Though it was called a rumour, it is entirely true that the legendary Justin Bieber ( who gives ya bieber fever)  almost slammed into another door.... atleast his twitter confirmed it...

I have two reasons for his recent clumsiness
a) he's plain dumb
b) he's nocturnal
c) all the above
so which is it Biebs?