Everyone needs it, everyone uses it.

NOTE : This post shall be posted, and preferably read after dinner time.

马桶.
In English, it is being translated to "Toilet".

Eeeks !! Why this topic ??

The story is due to the office public toilet being made dirty by someone recently....

How dirty ?

Not to scare off readers, i just put it as "Evidence" of "exported substance" left behind, all over the place, to describe the situation.
The rest is up to your imagination, unless you want me to take a picture of it? =P

Still wondering who was it... (Hmm. . . however i suspected someone already...)

Toilet, can be your best friend, but please dont dirty all over the place, can ??

Clean up your own SHIT !