My sister worked in a haunted school.
It all started when they remodeled.
Some of the girls started to tell her about 'the little girl' in the bathroom.
Then one day the secretary flew down from her office and refused to go back up.
She'd left her phone on speaker, and from the downstairs teacher's lounge, they could hear the copier running and hte computer keyboard tapping.
With NO ONE in the room!
It's a Catholic school, though, so next time the bishop was around he did the business and they weren't bothered anymore.