Oscar Botcherby

Oscar Botcherby was a human living in the 20th Century he lived in Spain, he was a moth collector and used cyanide to kill them even though it could harm him, he had a good friend who he took moth hunting called Anita. He met the Sixth Doctor outside the house occupied by the Sontarans. Later he is looking after a restaurant in Spain for a friend of his when Shockeye and the Second Doctor now temporarily transformed into an Androgum, enter his restaurant. After eating a huge meal they refuse to pay and after Oscar demanded for payments he was stabbed by Shockeye with a meat knife. Later when Shockeye was pursuing the Sixth Doctor, the Doctor used the cyanide left by Oscar in order to slay Shockeye so effectively Oscar got his revenge. (DW: The Two Doctors)