Let's put it this way: Grimaldi debuts his white-faced character in 1802. Among the thousands of audience members who saw his act was Charles Dickens, who later ghost edited Grimaldi's memoirs and used his son as the model for the alcoholic character in The Pickwick Papers , which was published in 1836. Within 40 years of that book, the darkness of clowns was so sealed in the public consciousness that the world embraced Pagliacci , an opera that is literally about a clown who murders his wife. If you're keeping track, there was never a moment in this timeline when clowns were strictly for laughs -- in the public's mind, the association between clowns and discomfort was immediate. If you didn't know any better, you'd almost think modern generations claiming that clowns are scary is like modern generations calling the sky blue.
Of course the side effects go far beyond the physical. Heroin users also suffer from the psychological effects of heroin, starting with rapidly shifting and prioritizing their life differently. They quickly separate the world into two groups of people: those they are using heroin with, and those that they do not. You can imagine how this alters their relationships and how they spend their time. Thus the use of the drug can have a huge social impact on people as well. The addict may find themselves hanging out with a crowd that they normally would not associate with. This can lead them to another side of the addiction that they probably did not count on in the beginning: behavior.
The red arrows represent the tendency for the iceberg to rise with success and maturity in the job, and to a degree also in the success and maturity of the employer organization. More mature experienced and high-achieving employees will tend to see their personal icebergs rising so that increasingly the hidden contractual factors become visible, and written into formal employment contracts, above the water-line, so to speak. Employees generally want the iceberg to rise. So do enlightened and progressive employers. They want the hidden unwritten aspects of the Psychological Contract which are below the surface to become applicable, and to be visible and formalised contractually. A rising iceberg signifies increasing employee contribution towards organizational performance, which is typically rewarded with increasingly deeper rewards and benefits.