Teens throughout the county are getting a heavy dose of reality leading into prom season.And the Hall County Sheriff’s Office, along with other emergency response agencies, is dishing it out.On Monday, the Sheriff’s Office began its annual “Fatal Vision” program at the area’s high schools.The program’s goal is to inform students of the dangers of impaired driving, including drunken driving.But this is no ordinary lecture.Students pack school stadiums and parking lots and are witness to an elaborate crash scene re-enactment, complete with a Life-Flight helicopter evacuation and a filled body bag.“I think the program was good because it’s a wake-up call for everyone that they need to watch out on prom night and just to be safe because this can actually happen,” said Katelyn White, a junior at Chestatee High School.A handful of high school students were selected as actors in the re-enactment, which was based around a head-on crash involving a drunken driver. One student, as a consequence, left the scene in a body bag. Another was transported away in a helicopter.“I know what it feels like to be in a wreck,” said Taylor Eberhart, a senior at Chestatee who played the “dead girl.”