Cruise lines face a challenge when it comes to deciding when to get involved. In many cases, the cruise line has to decide whether it's worth confronting a guest when a minor rule gets broken. That's most evident when it comes to dress codes and pool deck chairs.

Mayhem ensued when a group of Carnival Cruise Line passengers revolted shortly after embarking on a cruise when they were told that the itinerary had changed. They demanded an immediate refund. Needless to say, they were not happy. The incident happened in August aboard the Carnival Vista.

Carnival Cruise Line had to evacuate Grand Turk early due to incoming weather. This was during Hurricane Ernesto and Carnival Magic needed to leave the dock ahead of the storm's arrival. That's a rare situation,

Carnival Cruise Line had to evacuate Grand Turk early due to incoming weather. This was during Hurricane Ernesto, and Carnival Magic needed to leave the dock before the storm arrived. Such situations are rare but they do happen,