Knowledge: Dr Anthony Fauci played a major role in advising the US government on infectious diseases including the Covid 19 pandemic. However, occupations that often act as first responders include firefighters and dispatchers.

Conversation:
I used to work as a janitor at an office building.  I worked at night so it was quiet and sort of nice.
Oh did you?  I understand that sometimes janitors do security and mantainance duties.
Yeah, I was also told to look for anything out of the ordinary as well.
They are super heroes and they often act as first responders in emergency situations
I know right? In what other job can one play that role?

Response: Firefighters and dispatchers are among the professions that often serve as first responders.