Proposition of fact: Performance art is a kind of psychopathic action because it harm to people.
Definition of Terms: Art: the quality, production, expression, or realm, according to aesthetic principles, of what is beautiful, appealing, or of more than ordinary significance. Psychopathic: Relating to or affected with an antisocial personality disorder that is usually characterized by aggressive, perverted, criminal, or amoral behavior. Harm: physical injury or mental damage
Performance art harm to audience’s mental.
“Performance art gets a bad rap. When mentioned in conversation, or an invitation is extended between friends or lovers or acquaintances, one typically thinks of the notably eccentric—an acquired taste, to be sure—Karen Finley rolling around naked covered in honey; GG Allin beating himself over the head with a broken bottle and defecating onstage; six-foot-six-inch drag queen Vaginal Davis doing snarky celebrity impressions, and the list goes on and on. Though, what most people realize is that “performance art” is freaky or outlandish or designed to make onlookers uncomfortable.”
Performance art givespeople much harm because of violent.
Performance art is so bloody.
A phenomenon in contemporary art has been occurring in which blood is no longer merely represented but is actually being utilized for various art forms. In 1974 in a performance entitled “Psyche” she kneeled in front of a mirror, put on make-up and proceeded to cut into her face with a razor blade. In 1975 in a performance entitled “Le corps pressenti” Artist Gina Pane made cuts between her toes with a razor blade so that the blood would create permanent stains on a plaster cast that her feet were resting on.
Performance art is an essentially contested concept: any single definition of it implies the recognition of rival uses. As concepts like "democracy" or "art", it implies productive disagreement with itself.  The meaning of the term in the narrower sense is related to postmodernist traditions in Western culture. From about the mid-1960s into the 1970s, often derived from concepts of visual art, ...
Kristine Stiles, Out of Actions Between Performance and the Object 290
Performance art makes people get physic injury
V. Vale and Andrea Juno, Modern Primitives 167, 168