Before reading the article, I imagined myself asking that question, and it was the rude or exasperated version of "What must I do for you?" (to make you stop bu

Before reading the article, I imagined myself asking that question, and it was the rude or exasperated version of "What must I do for you?" (to make you stop bugging me). The polite or generous version is "What can I do for you?". I'm lucky enough that I get to ask the latter far more frequently than the former.