It occasionally dawns on me how much people who pilot vehicles like airplanes, trains, buses, etc. along set routes must get incredibly bored with what they're supposed to tell their passengers over the millions of times that they do a particular route each day.

Like when I hear the following:

-- The pilot of American Airlines flight 3834 from Houston to Dallas comes on the PA at the beginning of the flight:

This is your master and commander of this aerospace vehicle speaking, His Excellency the Captain. Our airspeed velocity and cruising altitude will be....

-- And the operator of a Washington, DC metro train:

This is the Red Line to Glenmont, servicing downtown Washington, DC, Metro Center..... and beyond.....