It's official — rich people really are stuck-up , at least according to one recent piece of research. A series of studies into unethical behaviour across the social classes has shown that posh people are more likely to cheat, lie and be greedy than people who are 1) ________________ . Researchers from the University of California 2)________________ people's behaviour in the real world and in a number of studies in the laboratory. The research showed that upper-class individuals are more likely to 3)________________ while driving and take valued goods from others. In the first study, researchers hid by a crossroads in San Francisco and 4)________________ drivers who were meant to stop and wait their turn before driving on. Whenever a car arrived at the junction, the scientists 5)________________ the driver's class according to the model, age and 6)________________ of the car. Nearly 250 drivers were observed. About 8% of those in the less classy cars cut people up , but drivers in the most prestigious cars did so around one third of the time. The results were similar when a pedestrian tried to cross. Drivers of the cheapest, oldest cars were most likely to slow down and 7) ________________ , but those in the most fancy cars ignored the pedestrian around 45% of the time. The researchers also found 8)________________ between social status and greed and selfishness, a connection they think might 9)________________ between the rich and poor. In several laboratory studies, the scientists found that the higher a person's class, the more likely they were to tell lies 10)________________ and cheat for money. It seems that the riff-raff always beat the toffs — at least when it comes to morals.