Bermuda Trangle Acts of Man

Human error
One of the most cited explanations in official inquiries as to the loss of any aircraft or vessel is human error. Whether deliberate or accidental, humans have been known to make mistakes resulting in catastrophe, and losses within the Bermuda Triangle are no exception. For example, the Coast Guard cited a lack of proper training for the cleaning of volatile benzene residue as a reason for the loss of the tanker V.A. Fogg in 1972. Human stubbornness may have caused businessman Harvey Conover to lose his sailing yacht, the Revonoc, as he sailed into the teeth of a storm south of Florida on January 1, 1958. It should be noted that many losses remain inconclusive due to the lack of wreckage which could be studied, a fact cited on many official reports.
Deliberate acts of destruction
This can fall into two categories: acts of war, and acts of piracy. Records in enemy files have been checked for numerous losses; while many sinkings have been attributed to surface raiders or submarines during the World Wars and documented in the various command log books, many others which have been suspected as falling in that category have not been proven; it is suspected that the loss of USS Cyclops in 1918, as well as her sister ships Proteus and Nereus in World War II, were attributed to submarines, but no such link has been found in the German records.
Piracy, as defined by the taking of a ship or small boat on the high seas, is an act which continues to this day. While piracy for cargo theft is more common in the western Pacific and Indian oceans, drug smugglers do steal pleasure boats for smuggling operations, and may have been involved in crew and yacht disappearances in the Caribbean. Historically famous pirates of the Caribbean (where piracy was common from about 1560 to the 1760s) include Edward Teach (Blackbeard) and Jean Lafitte. Lafitte is sometimes said to be a Triangle victim himself.
Another form of pirate operated on dry land. Bankers or wreckers would shine a light on shore to misdirect ships, which would then founder on the shore; the wreckers would then help themselves to the cargo. It is possible that these wreckers also killed any crew who protested. Nags Head, North Carolina, was named for the wreckers' practice of hanging a lantern on the head of a hobbled horse as it walked along the beach.