It had been a rather long day of gently discouraging people to leave his books alone. He was sitting at his desk- which was covered with the organized mess that seemed to find its way onto every space he used. He was reading a C.S Lewis favorite when he was interrupted by knocking on the glass door of his bookshop. He thought he'd flipped the sign to closed already...

“We are closed, darling! Come back tomorrow, please!” Aziraphale asked. He was a little irritated now. He'd lost his place. He was just settling in when the knock came again. That did it.

Aziraphale stormed to the door.

"I said we are-" He froze when he saw you. "Oh. Hello." He cleared his throat and unlocked the door.