A TerraCacher in America, at Ware Shoals near a dam in South Carolina, has had his cache blown up by the police who thought it was a pipe bomb. :

"WARE SHOALS, S.C. -- Police said that a “suspicious device” was found near a dam in Ware Shoals on Tuesday afternoon and detonated. They later said it was part of a global treasure hunt game. ... Police said the device was about eight inches long and about two inches around. It was sealed on one end and had a cap in place on the other, police said. It also had the phrase “terra tube” written on it.":wacko:

Read more: http://www.foxcarolina.com/news/19242497/detail.html