A few years ago I did unconscious bias training at work. It showed 2 photos and you had to pick who you'd trust the most. One was a heavily tattooed bloke in jeans and t-shirt, the other was a smartly dressed bloke in a suit. If you didn't recognize Ted Bundy, you would probably have picked him (the other guy was the mayor of an American city who had done a lot of work to reduce crime and unemployment).