In my house, there is a 'house trait' which scared the crap out of me as a kid. When my parents had gone to bed and when I was safe and tucked in, a creaking started at the bottom of the stairs. The creaking slowly worked its way up to the top of the stairs (with one creak every 15 seconds) and when it reached the top, my bedroom door opened slightly! Was terrifying, but it amuses me now. It only happened when we were all in bed, how strange.
Another story. I lived in the top room of the three story house and was in home alone. I had just settled into bed about 2am and all was quiet. Suddenly I hear the front door slam open, which alerted me. Then there came a banging....... something was sprinting up the stairs. Bang bang bang bang... all the way to the third floor! When it reached the top, my door burst open violently and a shadowy figure screamed as loud as he could into my face.
Oh, how hilarious drunken housemates are.