Yes, But.....

The captain was on the Bridge and there was a heavy fog. He saw a light in
front of his ship. He sent a message. "I have right of way."
An answer came from the light. "No you don't. Please turn 30 degrees to
port side."
The Captain was infuriated. "I'm the captain of a naval ship. Give way", he
sent back.
The light answered "I'm a mariner. Turn 30 degrees to port."
The Captain became really angry. "I'm the Captain of an aircraft carrier. I
will not turn!"
An answer came back. "You'll turn 30 degrees to port side. I'm a
lighthouse!"