Illegal markets can be considered secondary social groups, with their complex social structure and social interaction between each group. Such an example could be during drug sales with the interaction between the dealer and the customer. Sociology in Our Times introduces that "social structure gives us the ability to interpret the social situations we encounter." (Kendall 123). Therefore, social structure and social interaction are already present and built around the known environment. The class system has different effects on the setting of crime scenes. Kendall describes the class system as “property-based stratification types…” (Kendall 225), so different classes have different and differential properties. The upper class and even the upper middle class will have ownership of hotter products, things that hit all the ticks; concealable, removable, available, precious, fun and disposable. But that doesn't mean the upper class gets robbed more. Those from upper-class families are more likely to have stay-at-home moms who can serve as guardians of their environment and hot produce. Delinquents desire a target “who seems like an easy pickpocket” (Felson/Boba), or in other words the subordinate who dominates them. Violators understand that the target will be easier to acquire if that target is weak. Furthermore, the target may be safe if surrounded by dominators