"Why Mr. Fury, I feel positively manipulated." Nick's quick and eager response to her suggestion made her think that she'd been set up. She had offered her help, and could only feel amused that he still felt he had to trick her into it--quite successfully, too. When the bill came immediately after that little exchange, she let him take it. SHIELD could afford to pick up her lunch if she would be fixing their serum. "Will you be calling me as well?" she asked, voice sweet, with just a note of playful accusation.