Trust me, I’m a doctor. So goes the well-worn phrase, and as a survey by Ipsos MORI reveals, medical practitioners are indeed the most trusted group of professionals in Britain. 67 percent said they think doctors are trustworthy, followed by scientists with 62 percent and teachers with 58 percent. At the bottom of the pile are advertising executives who enjoy the trust of only 9 percent of the population outdoing even politicians in terms of distrust.