To be honest hon, I dont know many 16 yr olds that would hide under the bed if they saw someone, or many that would take the time to make a "fake' body in the bed. I beleive he is lying to you.
He also seemed to get quiet angry, another sign he was "caught". If he was telling the truth he would of been pleading his case, not been so defensive.

I can only suggest a heart to heart, and explain you will take great measures to ensure he cant leave his room at night if he cant be trusted. Give him the chance to prove he can behave first though. Put the ball in his court, and hope he plays nice.


I'm also not looking forward to the next few years!!!!