"World of Warcraft" ("WoW") was released for the PC in 2004. In "WoW," non-player characters (NPCs) in friendly towns can be attacked to lower your reputation with them. Certain achievements, such as "Bloodsail Admiral," require a low reputation with a friendly town to obtain. To attack a friendly town, you must declare yourself at war with them from the reputation panel at any time during the game.
Press "C" to open the character window.
Click the "Reputation" tab.
Click the button labelled "At War" next to the friendly town you wish to attack, like Booty Bay. This allows you to attack that town's NPCs.
When you are hated by a town, they will attack you on sight and not allow you to take quests or buy goods from them.