As I teach in my constructive feedback seminars: When we give vague, nonspecific feedback, the receiver feels helpless because they don’t have the information they need to remedy the problem. When people feel helpless, it triggers primitive hard-wired responses to helpless — from anxiety all the way up to fear. At a primitive, hard-wired level, fear is linked closely with aggression (that’s why you don’t back an animal into a corner). Thus, when people feel helpless, they often become aggressive. By being crystal-clear with your feedback, you help the listener feel a sense of control: “Ah … I know what he wants, what he doesn’t want, and what I can do to fix it.”