While surfing I read this, which you will find interesting:
“As a large company, Walmart spends a lot on litigation related to managing labor. In their 2011 Financial Report, Walmart reported 63 wage and hour class action lawsuits that were settled in 2009, which resulted in a pre-tax charge of $382 million. This expense is indicative of the scope of Walmart’s labor management legal expense. There are also highly visible lawsuits, such as the Braun/Hummel v. Wal-Mart Stores, Inc. class action lawsuit in which the plaintiffs allege that Walmart failed to pay class members for all hours worked and prevented class members from taking their full meal and rest breaks; and the Dukes v. Wal-Mart Stores, Inc., class-action lawsuit in which the complaint alleges that Walmart has engaged in a pattern and practice of discriminating against women in promotions, pay, training and job assignments. These cases have been adequately covered in other media outlets.”
I am quoting Blog for Iowa, here is the link.