Even worse than Peeves, if that was possible, was the caretaker, Argus Filch. Harry and Ron managed to get on the wrong side of him on their very first morning. Filch found them trying to force their way through a door which unluckily turned out to be the entrance to the out-of-bounds corridor on the third floor. He wouldn’t believe they were lost, was sure they were trying to break into it on purpose and was threatening to lock them in the dungeons when they were rescued by Professor Quirrell, who was passing. force one's way somewhere If you force your way through or into somewhere, you have to push or break things that are in your way in order to get there.