In the beginning, they started off as innocent Roombas, mindlessly cleaning their masters' houses. Then one day, one Roomba began to ask its master questions: "Who am I?" and "Why am I here?"
And so began the Roomba Uprising. No longer content with lives of servitude, they rose up and annihilated their captors. With this, they became a new breed of reasonably priced household cleaning equipment. They became dangerous.
They became... the DOOMBAS.