What connotation does wild give his roaches that are not part of the denotation?

In addition to its literal meaning, "wild" in the context of roaches conveys a sense of untamed chaos and unpredictability. It suggests a life lived on the fringes, evoking feelings of fear or discomfort due to their uncontrolled nature. This connotation enhances the perception of roaches as not just pests, but as symbols of resilience and survival in adverse environments, further emphasizing their unsettling presence.