My principals at my school can see our Facebook! That's an invasion of MY PRIVACY!!! WTH!?!? HELP?!?!?

[XC Rules]

I got in trouble for putting something on Facebook. Yes I know I'm bad and stuff, but whatever. We will deal with that later.

The assisstant principal called me in and I got Saturday school. It sucked. My parents grounded me on Facebook, so I can't do anything about it right now, but I will do something about it when they allow me back on.

Anyways, what can I do to stop this? I am part of the network at my school, so maybe that's why?

Maybe one of my friends is my principal? I will be suspicious from now on of all my friends.
Example: One of them on their Facebook says they are pregnent and she hasn't updated her stats in months. Maybe a principal is hiding behind that profile?

Also, if I post on my Facebook "THE PRINCIPAL CAN SEE YOUR FACEBOOK" then I will get in trouble, so I need help making up a story.
My idea: Someone on the XC team used to have a girlfriend that went to a different school, but they aren't in a relationship anymore. I will say that at a football game that she told me and a group of friends about this and stuff and I will never be known

THIS IS PRIVACY INVASION.

EVERYBODY LEARN FROM MY MISTAKE!!!!! CHECK ALL YOUR FRIENDS AND BLOCK SUSPICIOUS PEOPLE, DONT REMOVE, AND SPREAD THE WORD!!!!!!!!!