There's an intruder in the room...and it's me, apparently

We’re watching Play School. Keira keeps pointing to the screen and saying, “mummy, mummy!” Me: “Is that a mummy?” Justine is on the screen, good ole’ Justine. Keira: “Play school mummy?” “Her name’s Justine, Keira.” “No, my mummy” “Justine’s your mummy?” “Yeah” “No, I’m your mummy” “No, I want her!” Well, isn’t that just dandy?