Admissibility and merits of revision appeal in labor dispute

The Federal Labour Court (BAG) dismissed the plaintiff's revision and ordered him to bear the costs, thereby affirming the lower court's judgment against him. The dispute concerned a labor law claim, as indicated by the procedural context of a revision before the BAG's First Senate, which reviewed the Landesarbeitsgericht Baden-Württemberg's decision. The specific material facts and precise subject matter of the challenge are not detailed in the provided text, but the outcome stands as a final rejection of the plaintiff's legal position. No specific statutory norms or legal doctrines are explicitly cited in the available excerpt to explain the decisive legal basis for the decision.