We watch "The Caretaker" (Series 8, Episode 6) where we Yanks learn that this title means "The School Janitor." Whilst said learnding is going on, Clara tries to find a work/life/dating balance and The Doctor tries to save the Earth from... an easily confused exploding robot? Sigh. So keeping with the confusion theme, Danny thinks The Doctor is Clara’s dad, The Doctor thinks Danny is a Phys Ed Teacher (rather than a Maths teacher... that’s right... pluralized Math), and Clara thinks Courtney is going to displace her as a companion. Cuz that’s what we thought when Angie and Artie showed up. Who? That’s what I’m sayin’.