Divert your course.
This is the actual radio conversation between a US Navy ship and Canadian authorities off the coast of Newfoundland in October 1995. It was released by the chief of naval operations later that same month.
Canadians:
Please divert your course 15 degrees to the south to avoid a collision.
Americans:
Recommend you divert your course 15 degrees to the north to avoid a collision.
Canadians:
Negative. You will have to divert your course 15 degrees to the south to avoid a collision.
Americans:
This is the captain of a US Navy ship. I say again, divert YOUR course.
Canadians:
No, I say again, you divert YOUR course.
Americans:
This is the aircraft carrier US Lincoln, the second-largest ship in the United States Atlantic Fleet. We are accompanied with three Destroyers, three Cruisers and numerous support vessels. I DEMAND that you change your course 15 degrees north. I say again, that's one-five degrees north, or counter measures will be undertaken to ensure the safety of this ship.
Canadians:
This is a lighthouse. Your call.