A boy died after accidentally choking himself as he tried to experience the sensation of passing out and coming round, an inquest heard.
Karnel Haughton, 12, from Birmingham, was found at the bottom of stairs with a ligature loosely around his neck on 1 June.
His mother found him when she returned from shopping, the inquest was told.
Coroner Emma Brown recorded a verdict of death by misadventure at Birmingham Coroner's Court.