Gwen is shaking her head rapidly back and forth at the dinner table.
Ellie: “Gwen! Don’t shake your brains! Your seat buckle will come undone and you’ll fall out of your chair and bang your head on the floor! Then the oven door will fall open and you’ll fly into the oven and get all fried up! You don’t want to get all fried up, do you, Gwen?”