I was being chased by the janitor when I ducked into one of the classrooms. As soon as I heard the ceiling girl spawn, I ran back out as the door was closing. After a few seconds, I realised I could still hear her pattering along, turned around and there she was, coming at me across the large open area. She was able to catch me on the bottom floor while she was still on the third floor, which seems to be the only place this glitch occurs.
Anyone else seen this before?