A lady walks into a BMW dealership

A lady walks into a BMW dealership. She browses around, spots the top-of-the-line Beemer and walks over to inspect it. As she bends over to feel the fine leather upholstery, she inadvertently breaks wind.
Very embarrassed, she looks around nervously to see if anyone has noticed her little accident and prays that a sales person doesn't pop up right now.
As she turns around, her worst nightmare materialises in the form of a salesman standing right behind her.
Cool as a cucumber and displaying complete professionalism, the salesman greets the lady with, "Good day, Madame. How may we help you today?"
Very uncomfortably, but hoping that the salesman may just not have been there at the time of her little 'accident', she asks, "Sir, what is the price of this lovely vehicle?"
He answers, "Madam, if you farted just touching it, you're going to shit yourself when I tell you the price."