The Laser Equipped Autonomous Robotic Vacuum

(from the 2037 Hammacher Schlemmer Glaven catalog)

This is the robotic vacuum that navigates autonomously through your home up to seven times per week, where it can either clean your floors or patrol for intruders. The unit's specially designed dual, counter-rotating agitator brushes spread carpet fibers and enable the vacuum to remove hair and other detritus from low- and high-pile carpets, while its dual Class VII lasers are capable of vaporizing any intruders (or more likely, unwanted refuse left on the floor).

Sensors redirect the unit when it encounters furniture, walls, or stairs, and its anti-tangle technology reverses the rotation of the brushes when it encounters rug fringe. Sensors will also allow your pets to survive The Laser Equipped Autonomous Robotic Vacuum. It cleans up to four rooms, and incinerates up to three large intruders per charge, and automatically returns to its drive-on charger when its battery runs low. (2′ 1/2″ H x 13″ Diam. 11 3/4 lbs.)

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Alltop pretends to be autonomous too.