The fart is not seen by everyone as a harbinger of death. Rousseau (1712-1778) here records the last words of one Madame de Vercellis, with whom he was staying when she died.
Towards the end of her illness, she assumed a sort of gaiety, which was too regular to be unreal, and which was only a counterpoise to her melancholy condition and was the gift of reason. She only kept her bed for the last two days, and continued to converse quietly with everyone to the last. Finally when she could no longer talk and was already in her death agony, she broke wind loudly. “Good,” she said, turning over, “a woman who can fart is not dead.” Those were the last words she spoke.
(Jean-Jacques Rousseau – Les Confessions 1781)