One of the most cogent explanations I've heard comes from Seth Godin.1 He says that prospects lie because salespeople have trained them to, and “because they're afraid.” They have learned that when they tell the truth, “the salesperson responds by questioning the judgment of the prospect. In exchange for telling the truth, the prospect is disrespected. Of course we [prospects] don't tell the truth—if we do, we're often bullied or berated or made to feel dumb.

