What is the right of a stranger who paid the support of another?
When, without the knowledge of the person obliged to give support, it is given by a stranger, the latter shall have a right to claim the same from the former, unless it appears that he gave it without intention of being reimbursed.
When the person obliged to support another unjustly refuses or fails to give support when urgently needed by the latter, any third person may furnish support to the needy individual, with right of reimbursement from the person obliged to give support. This Article shall particularly apply when the father or mother of a child under the age of majority unjustly refuses to support or fails to give support to the child when urgently needed. (Arts. 206 and 207, Family Code)