Many records indicate that pirates spent a good portion of their time inebriated by drink. However, this is for a reason that many people don’t realize. In a hot, humid climate, especially in a time period without water purification systems and refrigerators, as well as for people who were constantly traveling or at sea for many days or weeks at a time, water had a tendency to go bad and be infested with bacteria. As a result, water supplies were mixed with rum and beer to kill the bacteria and preserve the water, as well as to add flavor. Because the climate in the Caribbean is hot and humid, pirates had a tendency to drink a lot of water to stay hydrated. As a result, they were constantly getting some form of alcoholic-water mixture, raising their blood alcohol content to high levels, causing them to be intoxicated often. As a result, their ability to maintain self-control was eliminated and a carefree attitude was established. Pirates risked their lives to plunder a town, and spent or wasted anything as soon as they acquired it. This explains why the pirates in this scene are singing with their arms around each other or sleeping in a pile of pigs while the city burns to the ground around them.