April (after Catherine taps her on the shoulder): Yes! You have no idea--
Catherine: No, sorry, sweetie. You're too tense. You're all wound up. This isn't woodshop. Step to the back. (she walks over to Cristina's station) You need to lay off the lattes, dear. Your left hand is shaking like a motel bed spring.
Cristina: It- It's just tired.
Catherine: I hear you, honey. Aren't we all? Step to the back. (to everyone) It's very simple, people. All it has to be is perfect.