When I was around ten or eleven years old, I went on a little camping trip with my dad and my grandpa. The camper we stayed in was located on the property my dad had grown up on.There was a house not very far from the camper. It was the house where my dad grew up, and where my grandparents lived until they died. My uncle had been staying in the house and told us the lights in the camper would turn on by themselves. My dad thought he was just making it up, I don't think he was. We stayed in the camper anyway.That night we went to bed around eleven o'clock. It must have been three am when I woke up to the sound of my uncle's dogs barking franticly. I saw my grandpa walk over to the camper door. He opened the door and asked if anyone was there?. I thought it must have been an animal, so I went back to sleep.