Unearthing Liability When Treasure Hunts Lead to Tort Claims

When a contract to dig for a septic tank turns out to be a cover for a treasure hunt, the written agreement cannot shield the landowner from liability for damage caused to a neighbor's property. The Supreme Court's ruling in Kam Biak v. Iglesia Ni Cristo (G.R. No. 160283, October 14, 2005) clarifies how courts treat parties who cooperate in committing a tort, even when they have a private agreement allocating responsibility between themselves.

The Case: A Digging That Went Too Far

John Kam Biak owned a gasoline station in Aringay, La Union, adjacent to a chapel of the Iglesia Ni Cristo (INC). He needed additional sewerage and septic tanks, so he engaged Dioscoro "Ely" Yoro, a retired general and alleged construction contractor, to do the digging.

The two executed a Memorandum of Agreement (MOA) on February 28, 1995. The MOA stated that Yoro would dig a septic tank on Chan's property, with Chan having "complete control" over the personnel entering the site. Critically, paragraph 4 provided that any damage incurred during the digging, whether within or outside Chan's property, would be borne by Yoro alone.

But the diggings were not what they seemed. INC members discovered that the excavation had traversed and penetrated a portion of their land, with a tunnel dug directly under their chapel, affecting its foundation. INC filed a complaint for damages.

The Issue: Can a Contract Shift Liability to the Contractor?

The central question before the Supreme Court was whether the MOA between Chan and Yoro had the effect of making Yoro solely responsible for the damages to INC, thereby absolving Chan.

Chan argued that the MOA was the law between the parties and that paragraph 4 clearly made Yoro bear all damages. INC, on the other hand, argued that the MOA revealed the parties' true intention: to search for hidden treasure, with the septic tank story merely a cover-up.

The Ruling: A Contract Cannot Exculpate a Joint Tortfeasor

The Supreme Court affirmed the lower courts' findings that Chan and Yoro were, in fact, in quest of hidden treasure and were partners in that endeavor. The Court held that the basis of their liability was not the MOA but the fact that they had become joint tortfeasors.

The Court applied Article 2176 of the New Civil Code on quasi-delicts, which requires: (a) an act or omission; (b) damage to another; (c) fault or negligence; and (d) no pre-existing contractual relation between the parties. All requisites were present. The excavation was a tortious act that damaged INC's property, and there was no contract between the diggers and INC.

Under Article 2194, the responsibility of two or more persons liable for a quasi-delict is solidary—meaning each can be held liable for the entire amount of damages.

The Court dismissed Chan's reliance on paragraph 4 of the MOA, stating that instead of exculpating him, the MOA was "the very noose" that ensured his liability. Joint tortfeasors include all persons who cooperate in, aid, or abet the commission of a tort. Chan and Yoro had even agreed in writing on how to divide any treasure found—inside or outside Chan's property line—proving their cooperation.

The Court also noted that Chan could not claim ignorance of the excavation's encroachment, as he had his security guard and engineer observe the diggings.

On Damages: Gross Negligence Warrants Exemplary Damages

The trial court originally awarded P10 million in exemplary damages, but the Court of Appeals reduced this to P50,000. The Supreme Court found this reduction inadequate.

Under Article 2231, exemplary damages in quasi-delicts may be granted if the defendant acted with gross negligence—defined as an entire want of care that raises a presumption the person is conscious of the probable consequences of their carelessness. Surreptitiously digging under a chapel, potentially weakening its foundation and endangering worshippers, unquestionably amounts to gross negligence. The Court increased the award to P100,000.

Notably, this modification also applied to Yoro, who had failed to perfect his appeal. Since the liabilities of Chan and Yoro were solidary and inseparable, the modification in favor of the appealing party also benefited the non-appealing one.

Practical Takeaways

• A private contract allocating liability between co-perpetrators does not bind third-party victims. If two parties cooperate in committing a tort, they are solidarily liable to the injured party, regardless of any internal agreement.
• Courts look at the real intention of the parties, not just the words of a contract. A written agreement describing a lawful purpose (like building a septic tank) will not shield parties if evidence shows the true purpose was unlawful or tortious.
• Solidary liability means the victim can collect the full amount from any one defendant. The defendant who pays more than their share can seek contribution from the other tortfeasor, but that is a separate matter.
• Gross negligence in quasi-delicts opens the door to exemplary damages. The more reckless the conduct, the higher the potential award for the purpose of setting a public example.
• Failing to appeal does not always protect a co-defendant. When liabilities are solidary and inseparable, a modification in favor of the appealing party can also operate in favor of the non-appealing one.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.