HOUSTON --An Humble man is facing charges on allegations he exposed himself in a public place. Luis Rivera-Castillo was arrested Thursday on a charge of indecent exposure, according to a Harris County probable cause document. Authorities allege Rivera-Castillo inappropriately touched himself in front of a woman at a public place on Thursday. The woman, according to the document, was offended and alarmed by the act. Indecent exposure is a misdemeanor charge. Bail for Rivera-Castillo wasn't immediately set. No other details were immediately available.