What they smell isn't the emotion of fear. What dogs can smell is the changes in a person's skin that suggest fear to the dog, anxiety, the way your skin sweats, the amount of uric acid that suddenly pours out of your pores.
Robert CraisStalking the Angel [Joe]"I could off anybody in this place five times over." [Elvis]"Could you off someone and get away with you here?" [Joe]Head shake. "I'm too good even for me.
Robert Crais