Im going to go out in another direction here, I believe this is all your fault. As an instructor, a look from you should strike fear into the deepest parts of their soul. Had you accomplished this goal early on he would not have dared touch your book for the fear that you might push him out the storm window on some lesson when he was under the foggles, ever so slightly saving said foggles from hurtling to the ground with him, all the while screaming like a madman at him that if he stole the book he should have read it and learned to fly!!!!