Talk about a bad case of theMondays.
Worse, she spends her first day on Merediths (Ellen Pompeo) service!
Whats in store for the new doc?

Credit: Mitchell Haaseth/ABC
And will Penny and Callie (Sara Ramirez) reconcile after that disastrous dinner?
SAMANTHA SLOYAN:Penny is understandably nervous, given the circumstances.
What can you tease about Pennys actual first day?
She is in the same hospital as Dr. Meredith Grey.
Penny better be at the top of her game.
Whats the dynamic like between Meredith and Penny?
Their interactions have been intense but also brief.
Whats the state of her relationship with Callie when she heads into her first day?
The last we saw Penny and Callie together, Penny was calling a cab.
Things could be better.
She cares for Callie, but knows how much it is asking to accept this new information.
Especially considering how Callie found out.
How is Callie torn between Penny and Meredith?
The doctors at Grey Sloan Memorial are like family.
I think that Callie and Penny have real feelings for each other, but their relationship is new.
How do you choose between family and something that has true potential but is still basically unknown to you?
Does Penny find any allies at the hospital?
All the doctors live with that fact.
I think Penny will find some allies at Grey Sloan.
Is there anything you’re able to tease about Pennys next interaction with Amelia?
Amelia is such a deep, intense character.
I think whatever their interaction, Penny will feel it.
Dr. Derek Shepard was a husband, brother and friend to these people.
Penny has to find a way to work side by side with them and gain their trust.
I think right now, That Night IS Pennys history.
Greys Anatomyairs Thursday at 8 p.m.