Wacker was sitting in Murphy's Irish bar, Piccadilly, London with a large Rottweiler at his feet.
Red casually walks over ...
'Does your dog bite?' asks Red.
'No,' replies Wacker.
So Red pats the dog who almost rips his arm off completely.
'Hey!' screams Red, 'you said your dog didn't bite, Wacker. '
'That's not my dog Red,' concludes Wacker