"I have not been here all day," is all grumble, no bite, with a muttered concession right on its tail: "Only some of it."

On the way to another sip, "Most of it."

As he's clearing a space, putting the cup down, he decides, "If they don't like it, they can fire me."

He's kidding, probably. Not that it's easy to tell. (If she knew him very well, beyond how he conducts himself when he thinks no one is watching, it would be.)