More than 500 people were working on the Safe Scandinavia oil rig.Then one day, a woman told her colleagues about her dream that a bomb would be on the platform. After her dream, the workers started to evacuate. Police investigated the truth of her dream. The RAF (Royal Air Force), coastguard and civilian helicopters were sent to the rescue of the workers. However, the incident in her dream never happened. And the large-scale evacuation of over 5 hours cost ￡500,000, including the operational cost of the RAF, coastguard and police.