ok little 2 much infor buty anyways just instead of locking it hide it, right click on it and say hiddena nd unclick read only, apply it 2 all sub folders and assuming your paretns arent smart with computers they wont find it, to view them again go to my documents or any window pretty much and go tool folder options and your file appears again, and just repeat the last step to hide them again, its easy
or make a document you can lock microsoft word docs