Oh, that was adorable. The way he had stepped in so neatly and distracted Mickey before she could start wailing- it almost made her wonder...But no, she needed to focus right now.
"Come on, I'll ring you up and you can get out of here." She walked back to the counter, scooping up Mickey on her way. "Nah, she's fine. Anyway, I'm sure you have places to be." And she sort of felt like leaving Mickey with him would be weird.