Every new scientific theory will hold a certain subset of assumptions and conclusions in common with those of earlier, equally ambitious explanations. This is particularly true when contrasted with notions relied upon for millennia. Like the mutual vulnerability theory, superiority theory understands the central importance of status. incongruity theory spotlights nonnormative traits and behaviors. tension relief theory recognizes the emotional liberation that comes about when apparent deficiencies transform into perceived vulnerabilities. In this chapter, we will reconcile the ways in which the MVT aligns with earlier models, and then discuss the essential qualities that make it stand apart. We shall then use it to address a few of the issues with which other explanations have had difficulty. We look at how and, more importantly, why bullies use sardonic laughter and degrading humor to inflict misery upon their targets; why laughter is often but not always contagious; and how best to understand what is typically meant by a “good” sense of humor versus a “poor” one.