GR L 5691; (December, 1910) (CRITIQUE)
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THE AI-ASSISTED CRITIQUE
The court’s reversal rests on a flawed conflation of customary practice with the legal standard of diligence under Article 1903. The opinion heavily relies on evidence that leaving horses unattended was a common delivery custom, but this confuses a descriptive fact with a normative legal defense. The Civil Code requires proof of employing “all the diligence of a good father of a family,” a standard that inherently questions the reasonableness of the custom itself. By treating widespread industry practice as dispositive proof of due care, the court commits a logical error, effectively allowing a collective habit to absolve individual responsibility without examining whether that habit, in fact, meets the required standard of prudence to prevent foreseeable harm to the public.

Procedurally, the court improperly substitutes its own factual determination for that of the trial court on the central issue of the cochero’s negligence. The trial court, having heard the evidence, made an explicit finding of negligence. The Supreme Court, while acknowledging the facts are undisputed, re-evaluates the inferences drawn from those facts—specifically, the reasonableness of the cochero’s conduct—which is traditionally a factual question. By declaring as a matter of law that the cochero was not negligent based on the custom and the horses’ prior gentleness, the court oversteps its appellate review function. This creates a precedent that insulates certain occupational practices from judicial scrutiny, undermining the trial court’s role in applying the diligencia de un buen padre de familia standard to specific circumstances.

The opinion’s reliance on Anglo-American jurisprudence, while attempting to harmonize legal principles, creates an analytical gap regarding the unique structure of liability under the Civil Code. The court sidesteps the explicit conditional liability of employers under Article 1903, which ceases only upon proof of the employer’s own diligence. By focusing almost exclusively on the employee’s lack of negligence and invoking foreign case law about unattended horses, the decision avoids a necessary two-step analysis: first, determining the employee’s fault, and second, examining whether the employer, Van Buskirk, exercised the requisite supervisory diligence to prevent such an incident. This omission is critical, as the employer’s liability under the code is not purely vicarious but is based on a presumed fault in selection or supervision, which the defendant failed to rebut with affirmative evidence of his own preventive measures.