Nor does copyright protect any idea, system, method, device, or trademark material involved in developing, merchandising, or playing a game. Once a game has been made public, nothing in the copyright law prevents others from developing another game based on similar principles."[12] Courts also consider scènes à faire (French for "scenes that must be done") for a particular genre as uncopyrightable; games involving vampires, for example, would be expected to have elements of the vampire drinking blood and driving a stake through the vampire's heart to kill him.[4] It is generally recognized in the video game industry that borrowing mechanics from other games is common practice and often a boon for creating new games,[14] and their widespread use would make them ineligible for legal copyright or patent protection.[10][15]