It appears nobody wants to post a riddle. Then I will post again! It is what we all know, A thing, with many flaws, It is to this, that we owe, The meeting of our cause.
An object, proving something is true, That can sometimes come out of the blue. Used in everything from speech to math, Tell a lie, and you will feel its wrath.
Does it have something to do with the bus driver? He's the only one with enough experience, and you said the person had to have experience. Or was the guy at the grocery store a spy himself?