A Texas dentist was busted for allegedly performing surgery on a child while drunk – and flunked a sobriety test when staff flagged her suspicious behavior to police, cops said. Kelly Buck, 36, was arrested Monday afternoon at Pediatric Dentistry of Sherman, about 65 miles north of Dallas, after a staffer noticed she appeared intoxicated while treating a patient and alerted the authorities, according to the Sherman Police Department and the dental practice. Officers responded around noon and took the allegedly tipsy tooth doc into custody after she showed signs of being boozed up and failed a field sobriety test,...