Professor Gary Mortimer (IMAGE) Queensland University of Technology Caption Professor Gary Mortimer is lead author of a study that measured customer aggression and the impact on employee emotional exhaustion, job stress and intention to quit. Credit QUT Media Usage Restrictions none License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.