Why are you so Tired?

"The year is made up of 365 days,
Each having 24 hours,
12 of which are night time hours,
which add up to a total of 182 days.

This leaves you with 183 days to work minus 52 Sundays,
which leaves you with 131 days to work
minus 52 Saturdays,
which leaves you with 79 days to work.

But, there are 3 hours each day, set aside for eating
and 1 hour for bathing and going to the toilet,
which adds up to 60 days,
which leaves you 19 days for working.

But you are entitled to 15 days of your vacation,
which means you have 4 days left for work minus 3 days,
which you usually take off due to illness or other emergencies,
which leaves you 1 day to work,
which happens to be Labour Day which is a Holiday."

SO, WHY ARE YOU SO TIRED?

-taken from a certain bio teacher's blog-

ok. i have seen this many many many times.
there's a mistake.
I KNOW THERE IS.
but i cant figure it out yet.
hmmm.
any idea?