sad banana signage (IMAGE) University of Bath Caption Sad banana signs above single bananas encouraged shoppers to buy the left-behind fruit and cut food waste, in a study by the University of Bath, RWTH Aachen University and Goethe University Frankfurt. Credit Svenja Gerecht Usage Restrictions No restrictions 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.