in the "Dinsdale" episode of Monty Python's F.C. we hear the fascinating tale of Doug and Dinsdale Piranha, founders of a notoriously violent gang, known as "The Gang". Dinsdale was, well, a bit Dim, and had the notion that he was being followed by a giant hedgehog named Spiny Norman. all we ever saw of Norman was the typical Terry Gilliam cartoon cutout of a hedgehog, in background, yelling "Dinsdale". you had to be there.

http://bau2.uibk.ac.at/sg/python/Scripts/ThePiranhaBrothersStory