Lisa Simpson : You can't keep us apart. I'll disobey!
Marge Simpson : I'm Bart Simpson's mother. You think you know any tricks I haven't seen?
[after Marge leaves, Lisa sneaks out the window and climbs down the tree, but Marge is waiting beneath with a laundry basket]
Marge Simpson : Bart Simpson, age 3.
[after they leave, Bart comes out of a hidden door in the tree, wearing ninja clothes and holding a skateboard]
Bart Simpson : Bart Simpson, age 10.