Maul Carts and Smoke Screens

Maul Carts are the large, extremely fast mail carts mounted on office chair swivel legs. When an Intruder activates a booby-trapped pencil sharpener, the sharpener releases a cloud of dusted graphite and pencil shavings, allowing the Maul Cart to attack the Intruder while they are blinded and trying to flee the cloud.
Drops a basketball sized yellow.