What are the scariest paranormal activity stories you've heard?

The scariest one I've heard was about a couple on a road trip. They stopped at an old motel for the night. In the middle of the night, the woman woke up to see a face staring at her through the window. When she screamed, it disappeared. But then they heard scratching on the door. They quickly packed and left, and later found out that there had been several unexplained deaths in that motel.

A house in a small town was known for its paranormal activity. The family living there would find objects moved around the house. The scariest part was when their young daughter started talking to an 'invisible friend'. But the things this 'friend' said were really creepy and made the family flee the house.

There was a story from a sailor. He was on a ship in the middle of the ocean. One night, he saw a figure walking on the water towards the ship. As it got closer, he could see it was a man with a pale face. The figure seemed to pass through the side of the ship and then disappeared. The sailor was so scared that he refused to go on any more long - distance voyages. This story gives me chills every time I think about it, especially the idea of something so strange happening in the middle of the vast ocean.

A friend told me about a neighbor who would leave creepy notes on their door. The notes were full of strange symbols and threats. It was so scary that they had to move out in the end.

I heard a story where a family moved into a new house. The bathroom always had a strange smell, like rotting something. Whenever they flushed the toilet, it would make a gurgling noise as if something was trying to come up. One day, the daughter was in the bathroom and she saw a black hand reaching out from the toilet bowl. She screamed and they never used that bathroom again.

I heard a story where a person was about to get on a plane. But they had this gut - wrenching feeling that something bad would happen if they boarded. They didn't go. Later, that plane crashed. It's really scary how their intuition could have sensed something so terrible.

One of the scariest is when a cloud service provider had a major outage. Many businesses relying on their services were left in the lurch. Their websites went down, and they couldn't access important data stored in the cloud. It showed how vulnerable businesses are when they put all their digital eggs in one basket.

A really scary military story is about a ship at sea. The crew started experiencing strange electrical glitches and then saw apparitions on the deck. It was a military vessel that had a history of some violent incidents in the past, and it seemed like the spirits of those who died were still lingering.

I heard of a Holi horror story where a woman's white dress got completely ruined by some boys who threw not just colored powder but also muddy water at her. She was humiliated and felt very scared as she was all alone and they were being very aggressive. It was a horrible experience for her during what should have been a festive time.

The scariest one I've heard was about a guy who would break into people's houses at night and just stand at the foot of their beds watching them sleep. He never stole anything or hurt them physically, but the idea of someone just standing there in the dark is terrifying.