Topic: "Well, Duh!"
Scientists working with imaging computers say the "Hobbit" fossil recently discovered on the Indonesian Island of Flores had brain features that justify its classification as a separate, but tiny, human ancestor. These brain features coincide with physical evidence of advanced behaviors which suggest that an organized society of tiny hunters flourished for millenia at a time when modern humans dominated the planet.
Frodo is thereby scientifically secure in denying any responsibility for the inventions of plastic, the internal combustion engine, Fox News, the Dallas Cowboys, VIOXX, or any descendant named Bush.
However, the "physical evidence of advanced behaviors" may have included a condom. That could, indeed, have been the reason for all the past tense usage above.