Two-Headed Robot

The Two-Headed Robot was the main villain in The Invisible Fran, the third book in the Franny K. Stein book series.

Personality
Originally intended to have two heads so it would be twice as smart as the average robot, the modifications done to it by Erin, Lawrence and Phil inadvertently made it twice as stupid instead, which led to the robot becoming a boorish vandal defacing the school with graffiti and spitballs.

History
The two-headed robot was first presented to the school on Hobby Day by Franny in hopes that her peers would volunteer to help her finish the robot in order to channel their inner mad scientist.

When no one showed any interest in helping with the robot, Franny resorted to turning herself invisible and whispering to Erin, Lawrence and Phil so that they would think everything they did to the robot was their own idea.

Things went awry when the three children decided to make adjustments to the robot when Franny wasn't around to guide them. This resulted in the two-headed robot becoming twice as stupid as the average robot as opposed to twice as smart as it was originally intended to be. Now a destructive idiot, the robot proceeded to vandalize the school with spitballs and graffiti.

After Franny chewed out her friends for what they did to the robot, she tried to sneak up on the two-headed automaton, but failed miserably, partly due to discovering the hard way that the switch on the robot's chest was not an off switch, but activated the robot's newly installed ketchup nozzle.

Finally realizing that not all hobbies had to do with mad science to be useful, Franny instructed her peers to use their skills on the robot. Phil used his stamps to blind the robot, Lawrence disoriented the robot by using his accordion skills to bash its heads together and Erin danced on the robot until all that was left of it were a bunch of flattened pieces.

Franny subsequently used the remains of the robot to make an oven and invited Billy over to bake pretty, pretty cookies, which were then eaten by Igor.

The two-headed robot was later seen again when Franny went back in time to change her middle name in The Fran That Time Forgot and was one of the monsters Franny remembered when her mother asked about Franny's pigtails running loose in Bad Hair Day.