Sarah Varney of NPR’s “All Things Considered” tested out the Kinoki body-detoxifying footpads currently making the rounds of late-night infomercials, to see if they really eliminate “heavy metals and metabolic waste.” She and her husband used them for a night, and by the next morning the pads were covered in disgusting black gunk, as advertised. But then she took them to a lab for chemical analysis to learn exactly what was going on. The results? The Kinoki footpads are a dirty scam.