In order to cure my obsessive-compulsive disorder, I signed up for the challenge of live streaming in a haunted house; every time the midnight hand passed, I knelt down and frantically wiped away the non-existent blood stains; the murder case file that the police believed to be closed actually reappeared in the wall of the haunted house; and what made my hair stand on end was that the barrage frantically refreshed the screen: "The knife in the hand of the shadow behind you is dripping blood!"