Historical research shows that in the 22nd century many people told stories about how,at one time, people could buy robots as house decorators.The robots would scan the literature for the latest ideas in home decoration. Often the robots would favour designs that were grander than their owners wanted. Brightly coloured cushions and beddings would be suggested together with brightly patterned walls and carpets.Some of clerks in the shops thought that designs were awful. While some owners were firm with their robot's suggestions ,others would turn around and walk out of the shop,feeling embarrassed. A few other robots would even get into physical fights with their owners in public and their eletrical systems sometimes would set off the shops' alarms. After a while the government decided such behaviour was not appropriate and passed a law declaring robots should not leave the house.So robots became household cleaners workers instead!