In this Dec. 4, 2006, file photo, Chief Judge Robert M. Bell listens to arguments in the Maryland Court of Appeals in Annapolis, Md. (AP Photo/Chris Gardner, File) by Jessica GreskoAssociated Press Writer WASHINGTON (AP) — Robert M. Bell was 16 years old when he recruited classmates to join a sit-in at a downtown Baltimore restaurant. The sit-in was Bell’s first, and he remembers being a little nervous. On the afternoon of June 17, 1960, the group entered Hooper’s restaurant, and a hostess said she wouldn’t seat them. “I’m sorry, but we haven’t integrated as yet,” she said. The group pushed past her and sat anyway. Police were called, and 12 demonstrators, including Bell, were charged with trespassing. Eventually, the case made it all the way to the U.S. Supreme Court.