The police officer pulls a car over on a back road and approaches the driver.

"Ma'am, why are you weaving all over the road?"

"Oh, officer," the woman replied, "thank goodness you're here! I

almost had an accident! I looked up, and there was a tree right in front of me, I swerved to the left,

and there was another tree.

I swerved to the right, and there was another tree!"

"Ma'am," the officer said, reaching for the rear-view mirror, "that's

your air freshener."