 The diner was filling rapidly, but there were still a couple of empty tables in the center of the car, so I went ahead and sat down. Three whites soon joined me, then all the seats in the dining car were taken. The steward came and gave the three whites menus, but ignored me. Every time he passed, though, he would look at me and frown. Finally, he leaned over and whispered in my ear, "'Say, fellow, are you Puerto Rican?'