" It's classical mythology, Cohen," said the minstrel. "I thought everyone knew. He was chained to a rock for eternity and every day an eagle comes and pecks out his liver."
"Is that true?"
"It's mentioned in many of the classic texts."
"I'm not much of a reader," said Cohen. "Chained to a rock? For a first offence? He's still there?"
"Eternity isn't finished yet, Cohen."
"He must've had a big liver!"
"It grows again every night, according to the legend," said the minstrel.
"I wish my kidneys did," said Cohen. "

― Terry Pratchett , The Last Hero (Discworld #27; Rincewind #7)