That's shitty. When you're at work you are paid to do your job, not complain like a child or cause a scene.
My whine/bitch of the day: My girlfriend signed up to work Boxing Day this year. As soon as one of the more ditzy, cunty girls who have been there longer saw this, she signed up for that very same shift, knowing it goes by seniority.
We needed that money for Christmas. She knew that.
Worst part is, this girl had actually BOOKED Boxing Day off months ago, and by signing up, pretty much wants to "unbook it". So you can tell she only did it in a conscious effort to be a cunt.