What drives these extreme selfie daredevils?
He's got a camera strapped to his head and he teeters on the edge of the roof in a nine story apartment block in Siberia.
"Are you filming?" he asks, as a friend hands him a flaming torch. Orange flames engulf his legs and suddenly he jumps, somersaulting in the air like a stricken warplane before landing with a thud into a deep pile of snow.