My little sister thought our oil furnace was haunted

My sister has always had a wild imagination.

She could entertain herself for days and days on a singular fantasy or idea that she fabricated.

It was actually quite fun to see what she would come up with sometimes. Sometimes her imagination got a little out of control though. She has basically been recovering for days because she fully convinced herself that our oil furnace down in the basement was haunted by the ghost of an evil demon. I think our oil furnace is just getting old so it’s starting to make some weird noises down in the basement, and occasionally we can hear these roars from within the walls of the home. My sister had watched a horror mystery movie the night before and when the oil furnace started to make noises, she immediately wanted to play detective and head to the basement to figure out what was going on. She tiptoed downstairs and peaked her head around the corner to see the oil furnace sitting in the corner. She waited a few seconds for the heater to kick in again and the furnace shook so abruptly that she swore she could see a shadow move right across it. She screamed at the top of her lungs and ran upstairs while yelling that the furnace was haunted. My dad had to go downstairs to investigate the situation for himself and show her that the old machine just needs to be replaced. She still believes that she saw something she shouldn’t have, and I honestly might believe her. Weird things happen in this house.
furnace/heater tune-up