He's a Florida cannon maker.
Campbell says he has an insane passion for collecting old cannons and building replicas.
He tells the Key West Citizen newspaper he lost count years ago when his collection reached 200.
Now, he's called "Captain Cannon" by his friends.
One recent project involved a pair of French-style cannons for a museum in Louisville, Kentucky.
Campbell made the brass cannons and charged $10,000 apiece for them.
Campbell can even dress the part.
He has the uniform of an 18th century sea captain.