MARTHA (sniffing as she goes). Oh!
(Zack hustles her out c. and returns to his cleaning, not so quickly that Paul does not see his return. Paul opens the door and Virginia enters. Paul follows her in.)
VIRGINIA. You do look busy, Zack.
PAUL. He's good at looking it. I'd guarantee he hasn't raised his hand while I've been out of the room.
VIRGINIA (who is obviously quite fond of Zack). Oh, but you must be kind to Zack to-day.
PAUL. Why? What's to-day?
VIRGINIA. I knew you didn't know. Do you, Zack?
ZACK (up to wall, consulting calendar). Tuesday.
VIRGINIA. It's your birthday and I hope you'll have a very lucky day.
ZACK. My birthday! The twentieth of June. So it is.