Ellis,
Certainly we're not hoping the fly will hear us as we "shoo" it away, with a wave of the hand. That exclamation is more for us, socially, to explain the wild gesture.

But....
I'm sure those jockeys were using mostly body language on that longshot;
Along with a bit of hissing and shooing, if within earshot.
They won their race;
But lost their face;
So see, when the shoos fly, all the jockey's were bought.
....But there's a better rendering, somewhere, of this lame aught.
~~~
smile


Pyrolysis creates reduced carbon! ...Time for the next step in our evolutionary symbiosis with fire.