Every night at 12:57 am (according to the alarm clock radio on my desk) the house shutters. It sounds like someone has jumped from several feet and landed on a floor whose foundation is hollow apart from the supports. It is very odd.
The other odd thing that happens late at night is that there's a crackling sound that comes from the air conditioning vent in the floor of my bedroom. It sounds like someone is stuck in stiff crinkly plastic bag and it trying to get out.
I'm starting to wonder if this place is haunted.
EDIT: 8/29/08 7:36pm
I asked my mom about the shutter at 12:57am and she said it's because the sprinklers turn off at that time and the noise comes from the water shutting off.