Our chapter house was certainly haunted when I was an undergraduate! Our house is one of the oldest around the campus, built in the 1870s and a private home until the chapter bought it in 1958.
Wierd things were always happening, and people actually saw ghostly figures!
Some stories I recall:
*We had a swivel rocker that sat in the living room. A brother said he came down the stairs once to see the chair slowly swiveling around by itself!
*A brother who's family lived locally always stayed in the house during breaks. One night he was watching tv with the house lights on, and decided to run to the convenience store at the end of the row. He left everything on, but locked the door. When he came back ten minutes later, the lights and tv were off. He checked the fuse box, but the tv and lights had been turned off...and the door was still locked!
*Many brothers (including myself) watched the attic and basement doors open and close by themselves numerous times.
*A brother was lying on a couch in a downstairs room when he looked up to see the hazy figure of a man cross in front of the doorway, and pass through the wall. The spot where the figure vanished is the walled-up site of the former front door!
*Our house mascot, a black lab, always used to stand at the top of the basement steps if the door was left open and stare. Sometimes he would bark or wag his tail while he sat there.
*There is always the sound of footsteps when no one else is in the house, and you can hear someone walking up and down the stairs all hours of the night when no one is there.
These are things that happened to me personally in the house:
*As a pledge, sometimes I would sleep on a couch downstairs rather than make the long hike back to my dorm. I was frequently awakened by the sound of footsteps in the wee hours of the mornng. They would come down the stairs, but there would be no one on the staircase (I could see the stairs from the couch)and the footsteps would move all around the downstairs. Sometimes they would even sound like they would stop right by the couch where I lay for a minute, then start back up!
* I lived in the house my senior year in a single room (I was also house manager). Because the house is old, it has very high ceilings and everyone sleeps in lofts about 7' off the ground. One night, I had just gotten into bed, but hadn't fallen asleep yet, and rolled over to see this glowing light about the size of a tennis ball hovering in the center of the room. It hovered there for about ten seconds, then dropped. I heard a sound like something falling on newspapers on the floor. I turned the light by my bed on, but there was nothing there. Including newspapers...
* Another night, I awoke to the sound of someone kicking my door open, and it banging into the radiator behind it. Thinking it was a brother of mine that came home drunk and thought it would be funny to F*** with me, I stuck my head over the side and let loose a flood of obscenities! All I could see was the silhouette of someone standing in the doorway, lit up from behind by the hall light. Without a word, the door swung shut and I went back to sleep. I woke up the next morning mad, because I was sure that since I had deadbolted the door, I was going to have to replace the door, lock, door jam, etc. Imagine my surprise when I found that the door was still deadbolted shut!!! Upon investigation I found that no one knew what the hell I was talking about when I thanked them for so rudely awakening me that night. It turned out that everyone had been back in long before my nightly visitor showed up!
* There was a shelf under the loft and near the door to the room where every night I put my wallet, watch, keys, and ring. The ring held a great deal of sentimental value for me because it is a signet ring that had belonged to my grandfather who passed away just before my ninth birthday, and it is really the only thing I have that had been his. Well, one morning I wake up and get ready only to discover that the ring is gone. I figured it fell on the floor and look around for it, but have to leave to go to class. I searched the room for it when I returned with no luck. I started asking my brothers if they had seen it or if I had left it in one of their rooms. No one had seen it. I literally tore apart my room searching for that ring with no luck. Nothing. About three weeks went by without the ring, and I resigned myself to tell my dad that I had lost Grandpa's (his father's) ring when I called home on Sunday. I said out loud something to the effect of "God, I really want that ring back!" or something. The next morning I woke up and got ready, and the ring was sitting on the shelf where I had left it three weeks earlier!!!
Last story - I swear!
* So much activity was going on in the house, that a group of us decided to try a Ouiji Board to contact the spirit(s).(I know, I know, I've heard all about the danger of Ouiji Boards). We contacted not one, but three spirits who claimed to live in the house. Two were the ghosts of former owners who had died while living there, the last wouldn't identify itself, and it's answers were somewhat hostile. The next morning, I went outside, and scattered on the ground around my car were all the contents of my glove box. Well naturally, I thought that someone had broken into my car during the night. However, I discovered that not only were the windows intact, the doors were all locked, and the glove box door was locked (it rattled if it wasn't kept locked - really annoying). Nothing was missing, and no one could have taken my keys.
We had a "psychic" come in and do a reading one time, who said there were multiple spirits in the house. I'm not really confident how psychic he was though.
I'll leave it to you to decide, but definitely odd occurances at the Phi Sigma Kappa house!
Sorry for the length, but I am fascinated by this stuff and love to share my stories!