In an interesting twist, about one-third of Prius drivers broke crosswalk laws, putting the hybrid among the highest "unethical driving" car brands. "This is a good demonstration of the 'moral licensing' phenomenon, in which hybrid-car drivers who believe they're saving the Earth may feel entitled to behave unethically in other ways," Piff says. (The Prius results were observed but not analyzed for statistical significance in the study.)