Rahul Jain presented on dealing with toxic people. He discussed characteristics of toxic people such as being judgmental, narcissistic, blaming others, and creating unnecessary drama. When dealing with toxic people, it is important not to engage with their irrational behavior and instead focus on staying positive and distancing yourself emotionally. For toxic job candidates, the presenter advised observing their behavior towards others and asking questions about past failures and challenges to understand their character. Hiring managers should avoid rushing decisions and focus on behavior over words to avoid bringing toxic people into an organization.