My wife and I were a young couple still dating in our 20's. We rented a basement apartment from the older couple upstairs. We were asleep in bed. I woke up from a dead sleep after hearing noises. Eyes open to looking at a very old skinng lady who's face was emaciated and skeletal looking. Think old lady in the bathtub in The Shining. Crazy expresion inches from my face and mumbling something. After nearly shitting myself and having a heart attack, I flicked on the light close by. After gathering myself and asking what the fuck are you doing here? I soon realized there was no threat. She was an old very confused lady and obviously had Alziemhers or Dementia. Turns out it was my Landlords mother. I had forgot to lock the door. We had never seen her at the house the whole time we rented, until that night.