about being brown.

just what is it about coffee that makes you shit?
so instantly.

been feeling majorly majorly sleepy the past couple of days
so went looking for a cuppa coffee this afternoon.
right after i finished drinking it,
i had to go shit.

why? why is it so instant?
or is it just me?
i mean the only thing they have in common with each other
is the colour brown!
and i mean, lots of foods are brown.
like chocolate,
or gravy,
or steak,
or mushrooms (but theyre mostly grey arent they).
but they dont have quite the same effect as coffee!

if someone knows, please tell me!