you might be able to get it back using greed .     set a cunning trap to lure him in . 
  yrs ago a man owed me a 100 .  i knew he liked 4 x 4 so  i got  a friend who had one to  let me borrow it .  i rang the guy up and said , hey iv this 4 x 4 ,dirt cheap.wanna look ?
   he was over like a shot, loved it! 
     i then said, mmm by the way,that 100 you owe me -   he gives me it straight away .    then i tell him the 4 x 4 is nothin to do wi me