It is rude not to be patient.
James hasn't eaten for eight hours and is waiting in a long line at the grocery store.
James wants to eat as soon as possible.
James asks the clerk if it's okay to eat a candy bar that he bought while he's waiting.
"James starts loudly saying things like ""Hurry up"" and ""Could you BE any slower?""."
The clerk, who isn't paid nearly enough to care, tells James to go ahead and eat his candy bar.
The checkout clerk speeds up slightly, but the customer in front of James turns around and lectures him about being a jerk.