6. Steve Wynn
Tearing Picasso a new one...
After striking a deal to sell Picasso's "Le Reve" ("The Dream") for a record $139 million, casino mogul Steve Wynn decides to show the masterwork to a group of visitors in his Las Vegas office.
As he gestures, Wynn hits the painting with his elbow, causing what's later reported as "a distinct ripping sound." Wynn cancels the sale and spends $85,000 to have the painting restored.