Key legal question
Whether the termination during probation was abusive under employment law.
Extracted holding
Yes. The employer had created legitimate trust that the 80% arrangement would continue for a certain period; terminating because the employee would not immediately increase availability contradicted that trust and was not protected by probationary freedom.
Extracted reasoning
The employer knew the employee had another paid activity and did not warn that an immediate increase would be expected. The dismissal was a reaction to the employee's insistence on the agreed 80% workload, not to insights gained from probation.