 Another sketch by Monty Python featured a song "Every Sperm Is Sacred" (1983) which is a satire of Catholic teachings on reproduction which forbid masturbation and contraception by artificial means.The sketch is about a Catholic Dad (played by Michael Palin), his wife (Mum, played by Terry Jones) and their 63 children, who are about to be sold for medical experimentation purposes because their parents can no longer afford to care for such a large family.When their children ask why they don't use contraception or sterilization, Dad explains that this is against God's wishes, and breaks into the song "Every Sperm is Sacred".