how would u pass the school blocking system or hack it?
check the door lock/mechanism,its possible the lock lever is burnt or defective.Have a look at this areas first before any attempts to repair or replace parts.cheers.
Start paying positive attention to this person every time you see him. ANY ATTENTION IS BETTER THAN BEING LEFT OUT OF LIFE most people don't waste their time or attention with fighting with their neighbors unless they feel left out, forgotten, or not liked or wanted. It takes emotion, focus, and a lot of time to bicker back and forth. He is most likely doing this because he is dieing inside and is in is own way begging you for help-pay attention and make friends with him.