If you head to a Wal-Mart, hope that your greeter is the guy who said this:
"I love people. It's just fun. I meet all kinds of people, and everyone's different. The kids are the best. If you don't give them a happy face, they will ask you about it."
And stay away from the greeter who, instead of giving out happy faces, bruises a fellow employee's face with a pricing gun.