I think LJ is just messing with us to show his above average skill as a salesperson.
The more open-ended the question the more info that spills from the customer that can be used to close them. ABC
Of course if you really want to have some fun - start asking a cop open ended questions, by the time you get to WHY? You will be in handcuffs and probably getting a complimentary strip search. Cops hate being asked open ended questions.
