When every property you drive by you judge for pond worthiness.
The property you are considering purchasing is next door to a hazardous materials landfill, the carpenter who built the house apparently suffered from macropsia, there's a sinkhole on the place that emits sulfurous fumes, and roving bands of gypsies camp in the woods.
Then you discover that the pond leaks and is filled with warring factions of Green Sunfish and Gizzard Shad, and you have to call the deal off.
