When I was 14 my A.F.J.R.O.T.C (air force junior reserve officer training core) flight and I went on a trip to the USS Lexington where we would be spending the night. I had little knowledge on the ship beforehand and only knew it was a WWII era ship at the time. I was walked around by myself for around an hour and a half due to getting separated from my group of three. Being interested in the ship and not knowing the history behind it I spent said hour and a half walking around the ship exploring and trying to find out more about the ships history.
I had seen a guy in the Machine Shop with dirty blonde hair, piercing blue eyes that seemed to glow, and a grey sort of jump suit on that seemed WWII era near a vice turn and look at me (you can't get inside that area without keys and there was one other person nearby whom I asked if he had seen him in there and they said they had seen no one). I was at one point also walking down the steep steps to the Engine room (directly behind that are stairs to a level they've flooded so that the ship stays put) and I looked to my side while passing it and saw a shadow figure peeking at me from the stairs. During the night both my phone and MP3 player (which were both completely full on battery and hold charge for 4 days) had been entirely drained of power and one of the guys in my flight had been woken up to a disembodied scream in his ear.
I would like to state that I didn't feel scared or threatened at all when on the ship and in fact actually felt very at home, almost like I was being led around the ship. The best way I could describe it was like I was being greeted and led around a childhood home by a friend I hadn't seen in a while but I was very close to.
I have also seen and experienced things at my house. Three different shadow figures, one wearing a pin striped suit with a fedora, one I can only describe as a giant angry man in a trench coat (so tall he had hunched over,) and an odd crawling one that seems almost childlike (I try to avoid contact with all of these due to an uneasiness I get from them.) I've also seen a woman in a white dress (I couldn't see her from mid-chest up) in my backyard four times in about ten minutes who was getting closer to me and I felt panicked. Another day I was home alone showering and multiple times heard a female voice call my name and the sound of the bathroom door opening. I would check the house each time it happened and nobody would be home, I eventually just ignored it then something grabbed my ankle. I jumped obviously frightened and pulled away the shower curtain hearing the bathroom door open once again. The door was standing wide open and I was still home alone.
This next experience I don't know whether it is classified as sleep paralysis or an attack considering the circumstances. I had been in my room about to lay down for a nap. My mom and I shared the room at the time and she was already asleep on the king size bed with a foot of space between us. I was feeling odd but brushed it off as just being tired and laid down on my stomach. I laid there for a few minutes and put my face in my pillow to quite audibly sigh because I didn't feel like I could fall asleep and suddenly felt a pressure on the back of my head and back pinning me down and pushing my head into the pillow like I was being smothered. I couldn't make a noise, couldn't move, and I felt genuinely terrified. My mother hadn't moved the entire time so she wasn't responsible and all other people whom lived with us at the time were out of the house. I am not a religious person but I started to say the guardian angels prayer that my grandmother had taught me and the weight lifted off me and I was able to move again.
I also experienced overwhelming fear and felt the need to run when being taken near a quarry I pass on my way to work one day. Doing research into the land around the quarry I found out that during the time Texas was being settled two people had been scalped a quarter of a mile from the quarry.