3 Times When Monty Python Were Blasphemous

Every Sperm is Sacred is a classic.  Michael Palin explains:

With Every Sperm Is Sacred, which we turned into a lavish song and dance routine, we had to be careful with all the kids. Certain things had to be dubbed later. In the film, you hear Terry [Jones] telling the children: “He has to put a little rubber thing on the end of his cock.” What he actually said was: “A little rubber thing on the end of his sock.” The kids were either totally mystified – or they understood perfectly what was really going on.