Ruth: "Just because they're taking the pill, Mr Rigsby, it doesn't mean they're doing anything wrong. It's a precaution - after all, you pay fire insurance but you don't expect the house to burn down."

Rigsby: "Yes, but you are supposed to try and extinguish the blaze, Miss Jones - not lie back and enjoy it."

Rigsby and Miss Jones discuss changes in the course of young love since their own youth in episode 3.6