Flea Circus
Under the magnifying glass fleas dressed as Don Quixote and Sancho Panza mounted tiny paper horses, and jousted with tiny lances. Troupes of fleas harnessed by metathorax to tiny chariots, cinched to wire leashes and trained to ride bicycles, walk the tightrope, dance to flea orchestras, and even pan for gold.
For 200 years captive living fleas fed on their flea trainers, who through understanding of their natural aptitude, taught them to no longer jump up, but to jump forward and manipulate objects put into their claws.