Nadine: I used to think my going to bed made the sprinklers come on because they happened at the same time. Grace: I used to think my house was alive. So I would put an apple under the porch every night to feed it, and in the morning it would be gone, and then one morning this little possum came running out. Nadine: So you figured out the possum ate the apples? Grace: No, I thought the house had a baby. I was five!
Quentin: Why do I have to wear a tie?
Grace: Because I don't have a leash!
The German episode title is "Gemeinsame Erfahrung", meaning "A Joint Experience".
Grace: If Libby's head starts spinning around, grab Quentin and Patrick and get out of the house immediately!
This is a reference to a famous scene in the 1973 film The Exorcist. Regan is possessed by the Devil and her head spins completely around.