She stepped out of the sunlight and felt that all-too-familiar anxious pang in the pit of her stomach as she remembered how horrible it was to live in her childhood home.
Tea allowed the British working class to endure long shifts, brutal working conditions and more or less constant hunger; the caffeine helped quiet the hunger pangs, and the sugar in it became a crucial source of calories.
Quite apart from liking to get Quidditch terms correct, it caused him another pang to imagine Ron's expression if he could have heard Hermione talking about Wonky-Faints.