A cruel gambler befriended then blackmailed a 75-year-old widower in an effort to pay off his gaming debts.
Steven Anson, 32, threatened to spread rumours the pensioner used prostitutes in order to extort cash from his former friend.
He had already borrowed £300 from his victim before the pensioner refused any further loans.
Resorting to blackmail, Anson forced his victim to hand over another £400.
Birmingham Crown Court heard how Anson, of Charlton Road, Kingstanding, even signed a promise to his elderly victim to stop blackmailing him, only to make further threats.
Pleading guilty to blackmail, Anson, who has a young daughter and a stepson, was jailed for two years and two months.
Judge Mary Stacy told the callous crook; “Blackmail is a nasty crime and the victim in this case was particularly vulnerable.