If you fancy a very, very short, back and sides get yourself to the hair salon of Vietnamese hairdresser Nguyen Hoang Hung.
He has thought himself the art of 'Sword Hairdressing' (is that a thing?) and happily splits split ends with a number of incredibly sharp swords.
Well, Hung loves nothing more than swinging his instrument around:
His customers absolutely LOVE the experience. Look at the joy on her face: