The AP reports: An errant high five has prompted a dentist to sue the Chicago Bulls for the actions of mascot Benny the Bull. Don Kalant is alleging in the lawsuit filed Monday that he raised his hand to get a high-five from Barry Anderson, who plays the mascot. But instead of slapping Kalant’s palm on February 12th, Anderson grabbed his arm as he fell forward, hyperextending Kalant’s arm and rupturing his biceps muscle.