(Strip Number 316, Original Publication Date, 8 October 1982)
Panel 1: We find Mike asking Elly if Lawrence can eat over, huh, please?
Panel 2: Her response is to start to say "Well...."; realizing that "Well....." heralds an excuse to deny him something, he turns up the pleading a notch by asking "Please, please, PLEEEEEEEASE!!!!" and looking as if he's trying to talk his way out of getting shot in the face for interrupting one of Elly's stories.
Panel 3: Since she doesn't want to make a big thing in front of outsiders, she sighs and asks Lawrence if he'd like to stay over for supper.
Panel 4: For reasons that should be obvious, her face is a mask of disproportionate rage when he asks what she's making.
Summary: The reason she's so pissed off is that she not only doesn't want it getting back to other people that her family hates her cooking and that they have a good reason to do so, she thinks that a mere child has just dared to dictate to a real human being.