Rick entered her phone number under the name "D-BL." All of his names were entered under similar codes, though usually he took more time to obscure an identity than he did hear. Mostly he was just concerned with keeping people from reading off-hand who he was calling if they got hold of his phone; it was an easy precaution to take, and versus the risk... well. No harm was going to come to her through that route, anyway.
As soon as he hit save, the phone buzzed enthusiastically in his hand, and he lifted it out of her view to inspect the message. First he frowned, then he sighed. "Work," he said, tipping it from one side to another. "Will you guard the cookies for a while? I've no idea if anyone else will be interested, but just in case." He smiled at her to take the sting out of the abandonment.