Questão jurídica principal
Whether the cantonal court's assessment of the evidence and factual findings was arbitrary under Article 9 Cst.
Decisão extraída
The cantonal court did not act arbitrarily in refusing additional evidence and in treating the alleged incidents as immaterial or as part of reciprocal neighborhood tensions.
Fundamentação extraída
The challenged facts were either already included in the record or not decisive. The appellate court could characterize the dispute as a human conflict between two families, with only minor incidents, rather than as defects of the leased premises.