Harry hadn't meant to have stumbled upon the room in which a stout man was sitting down, holding a sword in his lap. He was very new to the castle and hadn't meant to stumble into someone's private quarters. Harry could see the short man sharpening his blade with what looked like a stone. He didn't seem happy at all.

"Forgive me, but I am new to the castle. I did not mean to stumble into your room, sir." He felt rather stupid and hoped the man did not get angry at him.