Villains who enact moderate to extreme crimes for laughably small reasons, often to show how narcissistic or overdramatic the villain is. They can be driven to commit unspeakable acts just for the most pathetic and trivial motives and goals.

This also counts villains whose evil deeds are laughable, even if they're compared with really horrible deeds (e.g. Sir Topham Hatt).

Examples include Francis, William Afton, Omegus, Shrek, Lucifer Killingsworth, and Pop Thorn.

Fake Tragic villains often fall under this category due to many of them attempting to present petty grievances as tragedies that excuse their actions.

Important Note: Magnificent Baddies cannot be petty at all. Because while they are always highly pragmatic, pettiness in general just damages their dignity and polishes foolishness and stupidity.