Earlier this year D.C.'s normally chill National Gallery of Art made headlines when 53-year-old Susan Burns attacked the Two Tahitian Women painting in the museum's Paul Gauguin exhibition. The woman claimed a radio in her head programmed by the CIA had told her to do it, and that the painting was evil. 

Get this: she came back again last week, this time gunning for The Plumed Hat, a 1919 painting by Henri Matisse. After slamming the painting against the wall, she damaged the antique frame containing the work. After her subsequent arrest, she is currently under observation at St. Elizabeth's Hospital, obviously. [DCist]