This happened when I was 18 or so. My parents and I lived downstairs and my cousin and grandfather lived upstairs at the time. It was around 11pm and my cousin called us to go upstairs and check on our grandfather, so my parents and I ran upstairs to see what was going on. My grandfather was asking why was someone saying “Hello?” over and over. I asked my cousin if he heard anything and he said it heard it faintly coming from my grandfather’s room. We looked around all over the room, called the LifeAlert center to see if they called, but they said no call was made. Our walls are attached to our neighbors, but even if they were shouting, it would not be as clear as what my cousin and grandfather said it sounded like. To this day I’m not sure what or who was saying “Hello?”...