In this week's COMversation, hosts Kevin and Dave sit down with Associate Professor, David Gruber. David joined the Department of Communication Studies faculty after working nearly a decade oversees at institutions in Copenhagen, Hong Kong and Auckland, New Zealand. David is a persuasive communications scholar who has published extensively on rhetoric and the brain. In this interview we hear about David's need to play the electric guitar as loud as possible, his love of rocks and geology, and how a humor writing course he took as undergrad at USC, taught by the legendary Shelley Berman, sparked an intellectual curiosity that eventually led him to pursue a PhD.