So many of everything

Four women were driving across the country. Each one was
From a different place:
Idaho, Nebraska, California and Mexico. Shortly after
The trip began, the woman
From Idaho started pulling potatoes from her bag and
Throwing them out of the
Window. 'What the heck are you doing?' demanded the
Nebraskan. 'We have
So many of these darn things in Idaho, I am just sick of
Looking at them!' A moment
Later, the gal from Nebraska began pulling ears of corn
From her bag and tossing
Them from the window. 'What are yo u doing that for?'
Asked the gal from California.
'We have so many of these things in Nebraska, I am just
Sick of looking at them!'
Inspired, the gal from California opened the car door
And pushed the Mexican out.