DALLAS—Specialists at the National Exuberance Institute said Monday that nearly three quarters of national high-five slap exchanges are unnecessary. "Abuse and inappropriate implementation of the gesture is epidemic," said NEI president Avi Gupta. "Celebratory high-fives are marking such mundane accomplishments as the clearing of paper jams, the ordering of hot wings, the viewing of favorite TV commercials, and the simultaneous wearing of identical items of clothing." Gupta called for the use of restrained high-five alternatives, such as the "thumbs up" and the exchange of curt nods.