Mundungus ‘Dung’ Fletcher was both a petty criminal and a member of the Order of the Phoenix during both wizarding wars. He was very loyal to its leader, Albus Dumbledore, who had managed to get him out of a spot of bother. Most other members were wary of Mundungus due to his untrustworthy reputation. For example, he was supposed to be guarding Harry the night that two Dementors appeared in Little Whinging.