I've lived in at least two haunted places. One apartment and one house.
One morning in the apartment when my mother was waking us up for school, she walked into the kitchen and all of the cabinets, drawers, and even the refrigerator was open. There wasn't a single sound of anyone in the house the night before, not to mention my bedroom was DIRECTLY across from the kitchen and I didn't hear a gosh darn thing that night. There was a bunch of other spooky things that use to occur at night as well. My mother's touch lamp coming on and off randomly in the middle of the morning with no explanation. Food scattered on the floor in the kitchen. The sound of footsteps going up and down the stairs with no one to be seen. Etc.
Then there was the house we lived in until a few years ago. It was probably the worst of the two. One night my step-brother and I were playing Fire Emblem: Path of Radiance, we had pizza that night so there was an empty bottle of Coca~Cola on the floor, well... the bottle was laying on it's side and we watched in horror as the bottle rolled across the carpet and then rolled back into the exact place it was in. Needless to say, we continued playing our game but we were thoroughly spooked out. That house in general was a spook fest. My step-dad even said that one night he heard someone come down from upstairs(I was the only one who was living up there at the time by the way)walk to the side of his bed, then walk to the end of the bed, and sit down. No one, I repeat... NO ONE, was there. I was in high school at the time, and even I was terrified to go downstairs for ANYTHING at night. Always felt like someone was watching me when I was alone in my room.