It is a school computer. The BIOS is passworded on the few computers I have tested.
I like to be as white hat as possible, but the only solution I can think of right now is to do something out of character in order to get admin ... :?
The admin is not an idiot, and if I approached her and asked if she would be nice enough to install TC, not only would she say no, but probably ask to see my USB key quite often in class. One of the few teachers that has access to near-full admin is the computer sci teacher, there is also a woman from the division that is in a lot with full admin dealing with issues, she is also no idiot and I doubt asking either of these people would help.
The program (TrueCrypt) is clean, but I don't think they would help me with a program that has the multiple password and data filling features so no one can tell I am hiding files 8)
EDIT:
I try and avoid doing anything that could get me in trouble, yes. I don't really like doing anything malicious either, my conscience kills me = ). These are possibilities of course, but an alternative would be nice.