Study on deliberate reptile roadkill

Depressing news from the Green Bay Press-Gazette on a Canadian study regarding intentional reptile roadkill: “According to researchers E. Paul Ashley of the Canadian Wildlife Service, Amanda Kosloski at the University of Western Ontario and Scott A. Petrie at the Long Point Waterfowl and Wetlands Fund in Ontario, nearly 3 percent of drivers intentionally crush snakes and turtles on roadways.” I’m not sure I agree with the conclusion that people are resistant to public education campaigns; I rather suspect that the turtle crossing road signs in eastern Ontario have had at least some impact. Or at least I need to believe that they have.