Every normal man must, at times, be tempted to spit on his hands, hoist the black flag, and begin slitting throats
                                                            H  L  Mencken
Okay, folks, it's time for "Common Sense 101" and "Occam's Razor 101" ...

When operating a commercial lawn care service one expects professional procedures to be followed and professional methods to be used.
Especially if one provides such services to various businesses, residential properties, or public institutions.

However ...
I routinely see riding mowers being operated without bags on the side of their frames to catch the grass that flies off to the edge when cut.
Instead, the cut grass shoots out onto the sidewalks and into the faces of anyone who happens to be walking or bicycling by.

I swear ...
this world has some of the most clueless creatures in existence.