[Michael John Bettaney] lived alone, with a large plastic figurine of the Madonna, a number of Russian icons, a drawer of Nazi war medals and an extensive collection of pornography. Withdrawn and isolated, he repeatedly tried to persuade the female staff at MI5 to sleep with him, without success. He was occasionally overheard at parties drunkenly shouting: 'I'm working for the wrong side' and 'Come and see me in my dacha when I retire'. Six months before the first delivery to Guk, Bettaney had been found sitting on a pavement in London's West End, too inebriated to stand. When taken into custody for being drunk in a public place, he shouted at police: 'You can't arrest me, I'm a spy.' He was fined £10. MI5 did not accept his offer of resignation. This was an error.

Ben Macintyre, The Spy and the Traitor