Today I was getting ready for school When I was done I heard someone come up the stairs, into my room, and then they knocked at the door. Knock knock knock. I said "Yeah?" and waited for them to open the door themselves, and they didn't, so I opened it. No one there. I looked around, no trace of anyone. The knock and walking pace thing didn't sound like my mom's nor my dad's. The walk was too fast and quiet to be either of them. The knock was not a high pitch and gentle, and my mom usually knocks four times quickly. My dad doesn't even knock he just says my name and opens the door. So am I insane, is there a man inside this house, or am I being haunted I think it's the first one