Here's the scene outside my window (sketched from life).
A guy with a backpack leaf blower is blowing some dust and gravel around.
Then the mower guy leans over and lifts up his shirt a little.
The air velocity of a backpack blower is about 200 miles per hour, enough to put a rippling dent in the mower guy's butt.
Then they go back to work. And so do I.