Quinones worked as a technician for Houser Buick. His hourly pay, which amounted to about $30,000 per year, compared poorly to another employee, Barnes, who was paid a “flat rate” of $52,000 per year. Quinone asked to be paid on a “flat rate” pay scale, rather than on an hourly basis, but was rejected. He sued, contending that the pay difference was based on his Hispanic origin. Houser defended that the “flat rate” system allows employees who are highly productive to earn more as pay and is computed for each repair job completed. Quinones worked slowly; Barnes worked quickly and did high-quality work. The district court held that Houser offered a nondiscriminatory reason for the pay differential and held for the defendant. Quinones appealed. Does he have a case? [Quinones v. Houser Buick, 436 F.3d 284, 1st Cir. (2006)]