Questione giuridica chiave
Whether the cantonal appeal court had to estimate the duration of on-call interventions under Art. 42(2) OR
Decisione estratta
No. The worker had not alleged or proved the circumstances necessary to permit an estimate of intervention duration.
Motivazione estratta
Art. 42(2) OR eases proof of damage but does not eliminate the burden to plead and prove all reasonably accessible facts supporting estimation.