My co-worker pouts when she doesn't get her way.
She's 22 and ever since I started working with her (in early october) she starts to pout when she doesn't get her way, stomping off, giving everyone the silent treatment, snapping at people. For instance, today is was her turn to take the early lunch, but she tried to get out of it by saying it was my turn. Well, when time for the early lunch came around I was in the middle of something, so she went, but she left without telling anyone and when she came back she's stomping around and giving everyone silent treatment or snappy one word answers.
Is there anything I can do about this? Any suggestions? Please help...