the carver, the carver's assistants, and others invited to attend the event perform a celebratory dance next to the pole. A community potlatch celebration typically follows the pole raising to commemorate the event. Totem poles are typically not well maintained after their installation and the potlatch celebration. The poles usually last from 60 to 80 years; only a few have stood longer than 75 years, and even fewer have reached 100 years of age. Once the wood rots so badly that the pole begins to lean and pose a threat to passersby, it is either destroyed or pushed over and removed. Older poles typically fall over during the winter storms that batter the coast. The owners of a collapsed pole may commission a new one to replace it. Cultural property Each culture typically has complex rules and customs regarding the traditional designs represented on poles. The designs are generally considered the property of a particular clan or family group of traditional carvers, and this ownership of the designs may not be transferred to the person who has commissioned the carvings. There have been protests when those who have not been trained in the traditional carving methods, cultural meanings and protocol, have made "fake totem poles" for what could be considered crass public display and commercial purposes. The misappropriation of coastal Pacific Northwest culture by the art and tourist trinket market has resulted in production of cheap imitations of totem poles executed with little or no knowledge of their complex stylistic conventions or cultural significance. These include imitations made for commercial and even comedic use in venues that serve alcohol, and in other settings that are insensitive or outright offensive to the sacred nature of some of the carvings. In the early 1990s, the Haisla First Nation of the Pacific Northwest began a lengthy struggle to repatriate the Gʼpsgolox totem pole from Sweden's Museum of Ethnography. Their successful efforts were documented in Gil Cardinal's National Film Board of Canada documentary, Totem: The Return of the G'psgolox Pole. In October 2015, a Tlingit totem pole was returned from Hawaii to Alaska. Gallery Examples The title of "The World's Tallest Totem Pole" is or has at one time been claimed by several coastal towns of North America's Pacific Northwest. Disputes over which is genuinely the tallest depends on factors such the number of logs used in construction or the affiliation of the carver.