Shelton resident Denisse Ramos, right, is a mentor in the “Beyond School Walls” mentoring program at her company, Comcast in Berlin. The 11-year-old program is sponsored by Comcast and managed by Nutmeg Big Brothers Big Sisters. At a recent mentoring session, Ramos and her mentee, Janthony, celebrated Halloween with holiday-related snacks, games and trick-or-treating at Comcast’s headquarters. Janthony and 24 other students from New Britain’s Lincoln Elementary School are mentees.