Colin Leahy, who never made it past the audition round during the third season of American Idol, is accused of having "inappropriate interaction with students" at P.S. 236 in Brooklyn. Leahy, a 23-year-old school volunteer, was charged with two counts of child endangerment. According to school investigators, Leahy sent text messages with sexual references to a 12-year-old male student, some inquiring whether the child was gay--the Daily News reports,"Leahy allegedly told investigators he was 'just......