Why do some people want to squish turtles ?

YouTube link. 

The data in this video may be soft, but there certainly is evidence that some drivers purposely swerve out of their lane in order to kill animals.

When I lived in Texas and drove to Oklahoma for rockhounding trips, I remember swerving on rural roads to avoid tarantulas.   I guess I can understand locals wanting to eliminate them.  But turtles???  Can someone explain?

Addendum:  Larry has reminded me about post turtles.  Question for readers in Texas - are they real, or apocryphal?