Andy tries to make Erin's Secretary's Day a memorable one.

He's soon at a loss for words, romantic gestures or songs, though.

While out to lunch with Erin, Michael accidentally informs her of Andy and Angela's past relationship, which she had no idea about and many fans probably forgot - or at least had made a distant memory by now.

She has a total freak-out and reveals herself to be a complete mess with foster home issues, but in the end, it only makes us love her more.

Andy too, although he's going to have to work harder for this than he bargained for. No songs are going to win her over ... try hard work!

Pam's first day back from maternity leave is today and the breast-pumping is off the hook. Dwight offers to help, while Meredith just wants to borrow the Cadillac of breast pumps.

It's hilarious and awkward.

Finally, Oscar circulates a video he made, which compares Kevin's voice to Cookie Monster's, overdubbed in all its cookie-chomping glory.

Angela smiles for the first time ever. Kevin complains to Sabre lackey Gabe to no avail, then retaliates with a video of Oscar as the count.

Also to no avail, humor wise.