I used to live in a 17th century house when I was a kid, weird shit happened all the time. Footsteps upstairs when I was home alone downstairs, creaking where the house really shouldn't creak, and a really sinister feeling when turning off all the lights downstairs before heading up for bed. Seriously freaky, and I wasn't the only one to feel it in my family.
Creepiest thing that happened there though was this one time where I got it validated that the strange things I'd been hearing that sounded like muffled voices were not in my head at all, as I was dreading (age about 12, I was freaking out thinking I was going crazy). My mom and I were home alone in the study looking for a book, when we heard muffled voices, kinda like if you've pocket dialled someone and they picked up and you hear their voice from afar. Neither of us had our phones in the room, and every appliance that could make any noise like that was off. Oh, and the house was in the middle of nowhere, so no visitors hanging around outside. Scary stuff.
Creepiest thing done to me by a person was probably when I was 10-ish and a man tried to force me to get into his car, saying he'd drive me home and talk to my parents because I 'hadn't followed trafic safety precausions'. I'm happy I had enough wits to bolt the fuck out of there.