Isn't it interesting how people view work? Give that girl a few weeks in an impoverished country where she has to walk three hours just to get an armful of firewood to stay warm and maybe she would become a star employee. And, maybe not even then.
I was a manager at a restaurant for a couple of years, and it was unbelievable to me what some people expected. I did literally laugh out loud at the "I don't want to work weekends" part. Brought back some memories. That is when you should have let her go right then. A retail store and she doesn't want to work weekends? So funny. We wouldn't even consider someone unless they said they would work weekends, Thanksgiving, Christmas and New Year's Eve. Yeah.