A word need not be in a dictionary to exist, but who says, "I'm going to the c-store. Do you want anything?" It sounds like c-word. In any case, nobody calls it - in that peculiar, lavatorial formation - a convenience store. Meanwhile, surreally, the same issue advises: "Biscuits should always be within arm's reach of desire."
Mr Baxter's staff might gesture towards the custard creams and ask, "Something for the weekend, sir?"