In the case of Farmers' and Merchants' Insurance Company v. Dobney in 1902, the U.S Supreme Court was tasked with determining whether an insurance company could be held liable for damages caused by a fire that spread from a neighboring property. The plaintiff, Dobney, had taken out an insurance policy on his property with Farmers' and Merchants'. A fire broke out at a nearby location not covered under this policy but eventually spread to Dobney's insured premises causing substantial damage. The court ruled in favor of the defendant (Farmers’ & Merchants’ Insurance Co.), stating that since the origin of the fire was outside their coverage area, they were not responsible for paying any claims related to it. This decision set precedent regarding how liability is determined when damage originates outside of an insured area but subsequently affects properties within it.

In the dissenting opinion for Farmers' and Merchants' Insurance Company v. Dobney, it was argued that the majority's decision to uphold a lower court ruling in favor of Mr. Dobney was incorrect due to an improper interpretation of insurance policy language. The dissent contended that the phrase "other insurance" should not be limited only to policies held by Mr. Dobney himself but also include any other existing coverage on his property, regardless of who holds it. This broader interpretation would mean that Farmers' and Merchants' liability would be reduced because there were indeed other insurances covering the same risk at the time of loss - namely those held by mortgagees with an interest in preserving their security against loss or damage to said property. Therefore, according to this view, since these additional coverages existed when disaster struck, they should have been taken into account when determining how much compensation Mr.Dobney was entitled from Farmers’ and Merchants’.