MR OBNOXIOUS: Sam Palmer

PETRA ECCLESTONE’S fiance Sam Palmer, left, has ramped up his feud with her ex-husband James Stunt – by threatening to thump him. Sam took to Instagram yesterday to announce: ‘I’m going to knock you spark out. I’ll let you have the first punch and then I am going to smash your face in. I cannot wait.’ Petra, 31, added: ‘I am sorry you [Sam] are having to deal with him. Thank you for supporting me.’ Classy...