one of the more irritating types of people to present something to are the kinds that sit down quietly and listen to your entire spiel and just ask one stupid question that renders your presentation completely irrelevant.
you might know the one. they're the ones who ask: “Why is this important to me?”, and after every explanation you give, just ask, “So what?”
@saper this is actually very true. my god, just asking, “what are we doing, here?” and following that chain of reasoning is so useful.