I sorta love it when I'm in E councourse in ATL and I hear "This is the final boarding call for Delta flight XXX to Anytown. The flight is scheduled to depart in 3 minutes. All passengers should board at gate A-1 immediately".

Let's see, the message was broadcast in Concourse E. The flight departs in 3 minutes. The distance from E to A is X miles. You do the math.