By distraction into instant action

When a car drives by
Diminutive Doggie
gives instant chase. Why?
Due to thinking foggy

Feels compelled to chase
she runs off & away
with more grit than grace
looks not much like ballet

While chases with plenty pluck
stirring up dusty buzz
still hasn’t caught a car or truck
And if she ever does:

here we pose a stupendous stumper
would she lick or bite the rear bumper?