Looking out into the pitch-black night, a sea captain sees a light dead ahead. It’s on a collision course with his ship.

He sends out a light signal: “Change your course ten degrees east.”

The light signals back to the ship, “Change yours ten degrees west.”

Angrily, the captain sends a second signal, stating, “I’m a navy captain! Change your course, sir!”

“I’m a seaman, second class,” comes back in reply. “You change your course, sir.”

The captain is now furious. “I’m a battleship!” he signals. “I’m not changing course for anything.”

He receives one final call, stating, “Well, I’m a lighthouse, so it’s your call.”