 The real punchline comes a bit later, as a scoffing Protestant Husband (played by Graham Chapman), after observing the large family's song and dance, briefly describes this "typical catholic" situation to his wife (Eric Idle).He goes on to remark how, as a Protestant, he could down to the store and unashamedly buy a condom, and that way, "because I'm a Protestant", intercourse is not bound to pregnancy, and therefore, available to them any time they wish.Protestant Wife's quietly excited reaction reveals, however, that they've never availed themselves of this option, turning the joke back round on the scoffing Protestants.