A young woman in relaxed clothing vacuuming hallway with small vacuum .
There is almost no chance that a mother cleans up after her children who spilled cereal in the hallway by vacuuming .
Chances are about even that a mother cleans up after her children who spilled cereal in the hallway by vacuuming .
There is almost no chance that a mother cleans up after her children who spilled cereal in the hallway by vacuuming .
A mother cleans up after her children who spilled cereal in the hallway by vacuuming .