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It's not precisely a line, but I really enjoy the cowardly Sir Robin song:
The Ballad of Brave Sir Robin
Bravely bold Sir Robin rode forth from Camelot.
He was not afraid to die, O brave Sir Robin!
He was not at all afraid to be killed in nasty ways,
Brave, brave, brave, brave Sir Robin!
He was not in the least bit scared to be mashed into a pulp,
Or to have his eyes gouged out, and his elbows broken;
To have his kneecaps split, and his body burned away;
And his limbs all hacked and mangled, brave Sir Robin!
His head smashed in and his heart cut out
And his liver removed and his bowels unplugged
And his nostrils raped and his bottom burned off

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