Backyard wrestling is a loose term used to describe the controversial practice of professional wrestling as performed by untrained fans in an unsanctioned, non-professional environment. These may include thumbtacks, barbed wire, tables, plywood, fire, glass, and fluorescent lamps. Connoisseurs to the sport often criticize backyard wrestling as more sloppy and not as well thought-out as professional wrestling, especially because of the tendency of backyard wrestlers to use more absurd gimmicks and story lines. Creativity and organization are also important issues in creating successful wrestling events, of which the majority of backyard wrestling inherently lacks. In its history, backyard wrestling has changed significantly in terms of its professionalism, safety provisions, popularity, and hardcore style. Backyard wrestling tends to follow the trends of professional wrestling and changes in accordance with what are the fads and trends in the major promotions such as World Wrestling Entertainment or Total Nonstop Action Wrestling. Although backyard wrestling has been often associated with a Mick Foley home video in which Foley jumps off the roof of a house onto his opponent who is lying on a pile of mattresses, backyard wrestling most likely began in the 1950s emulating such stars as Gorgeous George, and later Bruno Sammartino, and Superstar Billy Graham [citation needed]. The earliest listed "official" backyarder is Shawn "Crusher" Crossen who wrestled from March 1984 until early 1990 in his own promotion known as NWF Pro Wrestling. Twin Cities based promoter and trainer Eddie Sharkey actually co-promoted a sold-out wrestling event that featured matches from both Pro Wrestling America (PWA) and NWF Kids Pro Wrestling at the American Legion Hall in Champlin, MN back on November 1986.