The sinking feeling you get when using a hand dryer that isn't a Dyson Airblade. The feeling is especially pronounced if using a pathetic Dyson lookalike, which may take several minutes to dry your hands.
What took you so long?
Sorry just had a real bad Dyson Downer. The dryer in that toilet might be the same shape as a Dyson, but it sure as shit doesn't work like one