away from him again. The jury, deeply moved, acquit Mona, much to Burns' fury. Mona catches up on Homer's missed childhood; giving Homer a bath, watching Homer in the school play, knitting for Homer, teaching Homer how to ride a bike, and seeing a reenactment of the birth of Bart. To make Mona more welcome, Homer steals a whole room from Ned Flanders's house so she can have her own private bedroom. Burns renames his Germ Warfare Laboratory the "Grandma Simpson Peace Museum and Kid-teractive Learnatorium" to a crowd of cheering onlookers. Burns asks Mona to be the first to sign the museum's guest book. However, it is revealed to be a confessional trap when after signing the document, Mona says to Burns that she signed under false names while at national parks, which is a federal offense. Federal agents jump out and arrest her. Lisa tells Homer she disagrees with what the government did with Mona, and unintentionally gives Homer the idea to break Mona out of prison. The next day, Homer and Bart trick the bus which is transferring female convicts to prison into pulling over by changing a sign overhead to display a warning of a snowstorm ahead. As the drivers get off to put chains on the tires, Homer steals the bus and liberates the convicts as the police give chase. Not wanting Homer to be imprisoned and leave his children like she did, Mona tases him and pushes him out of the bus onto an abandoned bed. Homer watches as the bus flies off a cliff into a lake, where it explodes and is covered by a rockslide. The Simpsons hold a funeral for Mona and pay their respects, but the coffin (filled with last week's garbage) suddenly slides away and into a forest. Later at night, Homer pores over newspaper headlines and finds an article in which the first letter of each row spells out "IMOK" over the front and back side of the page. Taking this to be another message from his mother that she is still alive, he goes to sleep. However, he overlooks an article about a giant taco, in which Mona encoded a long message that explains she escaped from the bus before it crashed and hitched a ride out of town. Cultural references The title is a reference to the TV series My Mother the Car. The song Mona