Ultimately, the lingerie salesman’s worst nightmare is a tragedy of mismatched expectations. It is the realization that no amount of "extra quality" in the fabric can overcome a customer's refusal to accept their own reality. The salesman walks away from the encounter not just exhausted, but haunted by the knowledge that for every woman who finds the perfect fit, there is another determined to squeeze a waterfall into a teacup, blaming the teacup when it inevitably spills.