Knot cavers, arborists, rescue professionals, stagehands, fishermen, linemen and surgeons. The International Guild of Knot Tyers is an organization dedicated to the Promotion of Knot tying. Truckers in need of securing a load may use a trucker's hitch, gaining mechanical advantage. Knots can save spelunkers from being buried under rock. Many knots can also be used as makeshift tools, for example, the bowline can be used as a rescue loop, and the munter hitch can be used for belaying. The diamond hitch was widely used to tie packages on to donkeys and mules. In hazardous environments such as mountains, knots are
USS Tom Bowline (1814) — only to be driven off by a gale. "Hornet" arrived five days later, but her landfall coincided with the appearance in the area of British brig-sloop . The two ships closed for action, and "Hornet" damaged "Penguin" seriously enough to warrant destruction of the Briton. The sighting of strange sail on the horizon hastened "Hornet's" burning of the prize, but apprehension turned to relief as the sails proved to be "Peacock" and "Tom Bowline" returning to Tristan da Cunha for the planned rendezvous. "Tom Bowline" embarked the "Penguin's" captive crew and took the prisoners to Rio de Janeiro, Brazil.