Christine Kwapnoski hasnt done too badly in nearly 25 years in the Wal-Mart family, making more than $60,000 a year in a job she enjoys most days.
But Kwapnoski says she faced obstacles at Wal-Mart-owned Sams Club stores in both Missouri and California: Men making more than women and getting promoted faster.
She never heard a supervisor tell a man, as she says one told her, to doll up or blow the cobwebs off her makeup.
Once she got over the fear that she might be fired, she joined what has turned into the largest job discrimination lawsuit ever.
The 46-year-old single mother of two is one of the named plaintiffs in a suit that will be argued in the Supreme Court today. At stake is whether the suit can go forward as a class action that could involve 500,000 to 1.6 million women, according to varying estimates, and potentially could cost the worlds largest retailer billions of dollars.