Pablo Picasso “Femme Nue Devant Le Jardin” / knife

(In 1999, a 41-year-old man identified only as “Paul G.” used a knife to cut a large, ragged hole into this painting while it was on view at Amsterdam’s Stedelijk Museum of Modern Art. After slashing the work, the man went to a newspaper office, where he boasted of his crime to a reporter, and was arrested soon after.

The same man, an escaped mental patient, had attacked Rembrandt’s painting “Night Watch” nine years earlier. In 1977, he’d also unsuccessfully attempted to hijack a KLM Royal Dutch Airlines flight using a toy gun.)