A session to teach Warren County High School students about the dangers of impaired drivers received a cold splash of reality Friday when pictures of the wreck that took the life of a Caitlin Talley were shown.Talley, a 17-year-old WCHS student, died in October 2012 when the Chevy Z71 she was a backseat passenger in left the roadway, struck several trees and flipped. She was thrown from the vehicle.“I have had several conversations with Caitlin’s mother,” said McMinnville Police Lt. Mark Mara, who is instructor of the class. “She was supposed to be with us today, but she decided this morning she just couldn’t do it.