What myth do people believe about St. Bernard dogs?

Many people believe that St. Bernard dogs were bred primarily as rescue dogs for travelers lost in the snowy Alps, often depicted as carrying small barrels of brandy around their necks. While they were indeed used for rescue missions by monks at the Great St. Bernard Pass, the idea of them carrying barrels is largely a myth. Their primary role was search and rescue, and they were bred for their strength and reliability rather than their ability to carry drinks.