La. Civ. Code art. 2897
Current with operative changes from the 2024 Third Special Legislative Session
When the thing lent is damaged by a fortuitous event from which the borrower could have protected the thing lent by using a thing of his own or, when being unable to preserve both things, the borrower chose to preserve a thing of his own, he is liable for the damage to the thing lent.
La. C.C. § 2897