Questão jurídica principal
Whether the respondent had passive standing in the claim for repayment of CHF 47,500.
Decisão extraída
Yes. The lower court wrongly denied passive standing; the respondent could be sued on the mandate.
Fundamentação extraída
The appellant gave the respondent a mandate to collect and hold the money. Nothing showed the respondent acted as representative of the owner; the trust principle did not allow inferring such representation from the mere label 'Régie' or from the surrounding rental relations.