Every fourth Saturday of the month, the multi-purpose room beside the Eno Arts Mill gallery turns into a classroom. Folding tables and chairs and a slew of donated art supplies fill the space for three hours of individual and collaborative art. Breaks are worked into the schedule, but most participants are so focused they only pause to get water or eat some of the provided snacks. Marty Rogers, a Raleigh writer and collage artist, was this month’s guest teacher at Bad Art Club in Hillsborough. In between presenting to the class of a dozen participants, Rogers worked on a project of their own. “I’m just kind of combining colors that I feel like wouldn’t usually go together because I feel like this is a great time to just be able to just mess around and experiment,” Rogers said, “whereas when I’m in my studio or just by myself it feels more high stakes almost.” Rogers said Bad Art Club is all about trying out new techniques… and color combinations: “I really am such an orange hater,...