A generation of houseflies decided to do something for entertainment besides the usual run of "fly stuff" and adopted themselves a national sport. Fly Drag Racing became so popular that the entire world of flies swarmed over to participate.

        There were vastly numbered trillions of entrants, and it became quite the job to prove who the winners were, so a two-billion strong panel of judges was elected and each fly was given a stopwatch to verify the ETs of countless contestants. What can be said about the judges and their stopwatches?

        Flies time when they're having fun!

(Would a fly without wings be called a "walk"?)