Carmen Robinson said she wasn't popular with the top brass in Pittsburgh's police department. Robinson, a mayoral candidate in the May 19 Democratic primary, said many of her 15 years on the force were unhappy ones, marked by a sexual harassment lawsuit she filed against three superiors in the mid-1990s and accusations in 2003 that she attended law school classes when she was supposed to be on duty, a claim she denies. Robinson of the Hill District went on more than three years of disability leave starting in October 1994, citing stress caused by the alleged harassment.