I used to be an atheist until this happened.
A friend of mine bought a house with his wife and invited me and my spouse over for the housewarming party. We brought some dishes and a cake as gifts and put the dishes and the cake in the kitchen while we went to the living room to watch a movie. The movie was a post apocalyptic bleak film and about 25 minutes in came a loud crashing noise came from the kitchen. We looked in with the ambient light coming from the living room but the dishes seemed ok and so did the cake. So we went back to watching. Another 15 minutes go by and we heard a crash that was so loud coming from the kitchen. We all ran inside and turned on the light and saw the dishes were fine. However smeared into the icing of the cake was "I am in hel".
My spouse and I made an excuse and split.
Over the next two months he heard voices, saw extra dark spots in the house and heard crashes when he was taking a shower.
He sold the house and six months later he did research on it and found out it was owned by 1920's vicious gangster.
Now I know there is a god and a place of eternal torment. I am not sure why God allowed his torment to be revealed to us. Maybe he wanted to warn us or scare us. It's bizarre.
My friend was shaken too but eventually bought a house about 8 miles away and is very happy there with his wife. He hasn't had any more experiences and has become a Christian just like I did. The universe isn't as strange as we can imagine. The universe is as strange as we can possibly imagine.
Peace.