it is privilege.
Yea, I used to have to attend those stupid camps too, just before
my exams in high school. There was once I rebelled and wrote a
letter to the principal to tell him it is absurb to force all of us
to pay a certain amount of money to go to a place we all did not
want to go to. And then I got my whole class to sign it...the next
day there was a big commotion in the school due to this letter of
mine, but luckily they never found out it was me who wrote it cos
the whole class kept quiet 
Well, at work just now, there was this colleague of mine who just
quitted. And with a very short notice and my boss do not want to
hire an extra help to replace her so soon. So he sent out a notice
to ask some of us to take her shift. Given that I have just been
given a pay raise and live in the same building in the office, of
course his first target was me. But thing is the shift fell on the
time I am supposed to be having classes, so I politely told him no.
He replied saying that I should work at least part of the
shift(very early in the morning and I cannot work early in the
morning, which is why all my shifts is either late at night or in
the afternoon) but I told him I am already working 14 hours per
week plus I am taking two hard core classes right now which demand
most of my time when I am not working. He didn't say anything after
that but can feel he is a bit bo song with me already
lor...*sigh*
But I guess I have to learn how to say no sometimes, need to be
firm otherwise will get pushed around 