This is the shocking moment an arsonist burnt his own backside during a shop attack.
CCTV footage captures his accomplice ramming the door with a motorbike before he pours flammable liquid inside and sets it alight.
But as he makes his escape the flames catch his clothing and he has to pat them away.
Both men then flee the scene on the red motorbike, with the arsonist riding pillion.
Police officers investigating the attack said a cleaner at The Dolls House shop in Bridge Street, Manchester, was treated for shock.