Individuals with antisocial personality disorder (ASPD), a category in which both psychopathy and sociopathy fall, are often adept at reading and manipulating people. They are typically good at understanding social dynamics and exploiting them for their own benefit. This can sometimes include recognizing who may pose a risk or threat to them, and they may therefore avoid direct confrontation or manipulation with these individuals. However, this isn't a universal rule and can vary significantly between individuals.
However, it is important to note that the lack of empathy and disregard for the rights of others, traits that are characteristic of these disorders, can sometimes interfere with their judgment. Even if they recognize that someone might be a threat, they may not always respond in the way that one might expect. For example, their overconfidence or impulsivity might cause them to engage in risky behaviors even when they recognize the potential for negative consequences.
Keep in mind that the behaviors and perceptions of individuals with ASPD can be complex and can't be generalized across all individuals with these diagnoses. The ability to "know who not to mess with" can vary greatly among individuals, and it can be influenced by a variety of factors, such as their personal history, their current situation, their specific personality traits, and other variables.