Pupil: The sausage!
Because he was always coming in a little behind.
She waits until midnight and plugs it back in. Disclaimer: I know it's terrible, I was very young when I came up with it.
Pupil: Well you keep saying that things go in one ear and out the other so I am trying to keep them it all in!
They both fear the wurst
Their sausages are the wurst.