Would a thief believe you if you told them you had been robbed by another one some minutes ago? Imagine you were walking back at home from work and it happened someone stole your belongings, later, you kept going on and encountered another different thief who would demand for your things but you didn't have anything else to hand. If you said the truth, would he believed you after having looking you thoroughly and thrusting his hands in your pockets or would he fired his gun because you were a "liar"?