From "Monty Python and the Holy Grail"

LEFT HEAD: He buggered off.
RIGHT HEAD: So he has, he's scarpered.
MINSTREL (singing): Brave Sir Robin ran away
ROBIN: No!
MINSTREL (singing): Bravely ran away away
ROBIN: I didn't!
MINSTREL (singing): When danger reared its ugly head,
He bravely turned his tail and fled
ROBIN: No!
MINSTREL (singing): Yes Brave Sir Robin turned about
ROBIN: I didn't!
MINSTREL (singing): And gallantly he chickened out
Bravely taking to his feet
ROBIN: I never did!
MINSTREL (singing): He beat a very brave retreat
ROBIN: Oh, lie!
MINSTREL (singing): Bravest of the brave Sir Robin
ROBIN: I never!