IEDs strapped to the necks of farmers have been used on at least three occasions by guerrillas in Colombia , as a way of extortion . American pizza delivery man Brian Douglas Wells was killed in 2003 by an explosive fastened to his neck , purportedly under duress from the maker of the bomb . In 2011 a schoolgirl in Sydney , Australia had a suspected collar bomb attached to her by an attacker in her home . The device was removed by police after a ten-hour operation and proved to be a hoax
suspected collar bomb attached to her
Mosman bomb hoax
Improvised explosive device