Gemma followed her in, looking more than a little concerned.  She glanced tound the office and idly read through the equations on the board.  She was by no means the world's greatest mathematician but she was alright.  If this was maths assignments or something it might be alright.<br/><br/>She was snapped out of her thoughts when she realised the Deputy Head had locked the door.  She tried in vain to think of a decent reason for doing that, and previous nerves came flooding back.<br/><br/>"Errrm" she mumbled, chewing her bottom lip.  "I'm really sorry.  It was just one last one.  I'd forgotten they weren't allowed."  Damn, why was she such an awful liar.<em>I'd forgotten</em>- that had to be the lamest excuse ever.  She resolved to shut up and not make this worse.