I used to run a very old pub. So old it had blocked up tunnels in the cellar.
I lived there all alone for 6 months, which looking back amazes me, but most of the time it was fine, other times the atmosphere would change and things would happen.
I often felt watched in the cellar. One day as I was changing a keg I felt dh (then dp) slip his arms around me waist. I turned around laughing and nobody was there. I shot up the steps, only to find the door locked. I had the only key, fortunately still attached to my belt and not back down in the cellar.
I often caught a glimpse of a little girl of about 5 or 6 with long dark hair. A new customer told me off one night because my little girl was sitting on the stairs crying quietly in her nightdress. I had no children then.
Dh shouted at a bloke one night after closing, thought he must have fallen asleep in the loo because he wandered out of the corridor at 1am and then he disappeared. When we checked the CCTV it had all cut out for a couple of minutes before and after. On a digital system.
We were having a post shift drink one night when we heard rattling, then an almighty crash. When I got behind the bar all the (clean) drip trays were in a line under the corresponding taps, but on the floor. When I looked at the CCTV it was there plain as day. They shook, jumped up out of their holders and landed on the floor, all at the same time.
The wardrobe in my room was so old it had hanging rails that ran from front to back instead of straight across. The doors were on sliders too and really noisy, but every morning the doors would be open, despite me closing them when I went to bed. Took me ages to notice that though!