No. 83-1493. July 19, 1984. Rehearing Denied August 2, 1984. Jenkins Watkins, David Watkins, Dallas, Tex., for plaintiff-appellant. Worsham, Forsythe Sampels, Robert A. Wooldridge, Richard L. Adams, Dallas, Tex., for Missouri-Kansas-Texas R. Co. Appeal from the United States District Court for the Northern District of Texas. Before BROWN, GEE, and RUBIN, Circuit Judges. GEE, Circuit Judge: Plaintiff Johnnie F. Turpen, a Seventh-Day Adventist, was discharged from his temporary employment with the