Sad story:
I rented an apartment that had been previously rented by a young Asian couple. He worked at a restaurant in Manhattan. She was pregnant for the first time. One night, he was shot to death as he left the restaurant.
I moved in a few months later. The upstairs bedroom had an outside wall - no pipes, no doors. But every night about 3AM there would be a tremendous bang that would wake me. I could never figure it out. One night, the bang woke me and I saw that the shade on a lamp across the room was vibrating, actually ringing. I got up and grabbed it. The sound stopped and the lamp next to my bed took over. I grabbed it and the first lamp started vibrating again. I shouted "Stop it!". And that was the end. His baby was born that night. I never heard the bang or anything odd again.