 While playing with a Ouija board in their teens, one former Redditor and their friends continually pestered a spirit after it told them goodbye multiple times. Finally, the spirit got so tired of these meddling kids that it called them on the phone, spoke to one of their dads, and said, Don't F with me. Take some advice from Redditor BlueJake42, who accidentally invited a demon named Kaz into his dreams.