Ninja looting refers to the purposeful and malicious looting of a drop from a monster that doesn't follow the rules set by the group. In a sense, the item is stolen. This can take different forms in different games due to game-specific game looting mechanisms. In World of Warcraft, ninja looting refers to rolling for a BoP drop that a person should not have rolled on. Because WoW warns players when they roll for a BoP object, it is assumed that such behavior cannot be accidental. The player exhibiting such behavior is typically branded as a ninja looter.