An Iowa State University lecturer faces charges after being arrested during class. ISU Police say they received an anonymous call just after 10:00 Thursday morning from someone concerned about the behavior of Philosophy and Religious Studies lecturer Gordon Knight. The caller said Knight, 56, was slurring his words and having trouble keeping his balance. When officers arrived, they smelled alcohol on Knight, then took him out of the classroom. Knight was arrested after refusing a breath test. He's charged with second-offense public intoxication. Online court records show this is Knight’s third alcohol-related arrest in the past 13 months. He's worked on campus since 2003.