Kernrechtsfrage
Whether the employee was liable under Art. 321e CO for the employer's alleged rental loss.
Extrahierter Entscheid
The employer did not prove a contractual breach by the employee; without proof of breach, causation and fault did not need examination.
Extrahierte Begründung
The lower courts found the failure to re-let the premises resulted from collective decisions and circumstances not attributable solely to the employee, and no prior reprimand or proof of inactivity was shown.