... To few people realize the perils sailors went, and still go, through.
Mary Celeste, infamous as a mystery ship whose crew vanished without trace, was carrying wooden barrels of alcohol when her crew disappeared. She was still under sail when found, undamaged but thoroughly wet, the lifeboat was missing along with the sextant and chronometer, and a line tied to the boat was trailing in the water, with the trailing end frayed. When taken to port and unloaded, nine barrels of alcohol were found to be empty: they were made from a different, more porous wood than the rest.
The best guess based on the evidence is that the captain found his hold filled with alcohol fumes; the ship's complement then took to the lifeboat out of fear that the ship was at risk of explosion, tying the lifeboat to the ship in apparent hope that they might return once the fumes had vented and danger had passed. In their haste to depart, they left the ship under sail, and the line gave under the stress, leaving them stranded at sea in a lifeboat - and a storm came through the area. The lifeboat foundered in the storm, taking its occupants to the bottom. Among the occupants, besides captain and crew, was the captain's wife and his two-year-old daughter.
One of the more notable maritime disasters involved SS Grandcamp, a freighter whose cargo of ammonium nitrate - fertilizer - caught fire and then exploded off Texas City in 1947. The blast caused a fire in another ship carrying ammonium nitrate, High Flyer; that ship too exploded, despite a brave effort by her crew to get that ship free and out of the port. Nearly a thousand buildings were destroyed and hundreds of people killed.
Here's a really wild set of pictures of a tugboat on a truly interesting day at work:
http://www.cargolaw.com/2002nightmare_towboat.html