Extras? You mean, as in ‘other services offered’? She runs through a menu of the day’s specials and when they say the prices seem a bit expensive she says so is philosophy, which is what she is studying, and it’s especially expensive for foreign students and why do they think she’s working here, for the fun of it? Some of them ask her what’s wrong with a bit of fun, missing the point completely. Some of them make a joke of it, asking how much for the meaning of life. (A lot, she says; more than you can afford, little man.) Some of them suggest she should be studying economics, or at least taking a joint degree, and point out that if she charged less she might get more takers. They have a point, she admits; but she is proud of her philosophy essays and her tutor says she has a natural gift and she knows what she’s worth.