No. 88-5319. Submitted March 14, 1989. Decided August 23, 1989. Rehearing Denied September 11, 1989. David R. Hols, Minneapolis, Minn., for petitioner. John Fawley, NLRB, Washington, D.C., for respondent. Petition for review from National Labor Relations Board. Before JOHN R. GIBSON and BOWMAN, Circuit Judges, and HEANEY, Senior Circuit Judge. HEANEY, Senior Circuit Judge. Roseville Dodge seeks review of a National Labor Relations Board decision holding that two separate work stoppages by an unrepresented