I sort of believe, and in my familial culture, there's plenty of beliefs to go around, religious and just family-wise.
I have one story myself: I work in a hospital, and late at night, before I was supposed to clock out, I was sent to the kitchen to grab a tray of sandwiches for the ICU to have. The kitchen was already closed, and the staff turns off most of the lights, except for two. While I was near the refrigerator where they keep premade stuff, I heard bare feet slapping on tile, and when I looked to the other side, a man in a gown had just run in. Of course, my immediate thought was that he's a patient, he's not supposed to be in the kitchen - or that side of the building, for that matter - and I need to get him. The kitchen is sort of large, it takes some steps to get over to the side he's on and flick on the lights. When I was about to turn the corner into a more open area, the bare feet slapping started again, in my direction, and here comes the patient. He was scruffy, tanned, hair all over the place, he went running passed me, and straight into the giant metal door to the freezer. I mean head on, into the door, and I'm telling you all, he went through it and was gone. It took me like 2-3 seconds, but then I froze, and had the worst feeling I can't even describe, my eyes were watering and I just don't even know. I ended up clocking out immediately after, it had been a long shift, I could've been overtired or something, and I'm still not 100% sure I believe what my eyes saw, I made up a lie when the charge nurse asked me what happened with the patient sandwiches too. Some weeks after, I spoke to a few of the food services workers...you know, indirectly, kind of seeing what goes on in there...and according to them, there are no overnight workers anymore, because the last four (yes, 4 whole people, on the same shift, but hired at different times, one after the next) kept getting creeped out and quit. I asked about that freezer, if anyone had seen anything in there, and according to them, it used to be the morgue before the kitchen was expanded, and from the outside, there is a vehicle ramp and a door, for the deceased to be rolled out and offloaded. I guess if anywhere would have ghost activity, a 90 year old hospital would be the place for it. And it might be silly of me...but man, after the food service workers close everything down at 9pm, I do not go into that kitchen.