Beating a coworker constitutes a serious breach of duties justifying immediate dismissal under Polish Labor Code.

The Supreme Court dismissed the furniture factory's cassation appeal against a labor court order reinstating the plaintiff to his job. The court found that the plaintiff's act of beating a female coworker during work hours constituted a serious breach of his basic duties, specifically violating the employer's right to maintain order and peace in the workplace. Although the lower court had considered the plaintiff's clean record, the Supreme Court ruled that the physical violence itself was a severe violation of social coexistence norms, warranting termination without notice.