“Change Your Course!”

On a foggy night at sea, the ship's captain saw what appeared to be the lights  of another ship heading toward them.

He instructed his signalman to contact the other ship by signal light. He sent the message, "Change your course ten degrees to the north."

The reply came, " Change your course ten degrees to the south."

The captain responded, " I am a captain. Change your course ten  degrees to the north."

Response: " I am a seaman first class. You change your course ten  degrees to the south."

The captain was furious. He had his signalman reply,
" I am a battleship. You  change your course ten degrees to the north."

Reply: " I am a lighthouse.

You change your course ten degrees  to the south."