The Krays? They were smashing blokes. Every Sunday morning one of them would come round and nail my Dad's head to the floor. One Sunday he wasn't feeling too good so they let him off. I mean, how bad's that? Smashing blokes. Won't hear a word said against them.
(With thanks and apologies to the Piranha brothers - Doug and Dinsdale - made famous by Monty Python and his Flying Circus).