boss: We've got some clients visiting tomorrow. I want to make huge posters out of some of our websites from the last year. They have to be three feet across. Can you get those out today?
me: They'll look terrible if we make them that large; these are website screens, 72dpi. We'll have to recreate them hi-res from scratch.
boss: Oh, how long will that take?
me: A couple of hours apiece, minimum.
boss: We'll need two dozen by tomorrow at 8am.
me: it's 3pm now, that's just not gonna happen.
boss: Dammit! From now on, we design EVERYTHING HI-RES.