Second Responder
From Gomerpedia
A second responder is the second person who responds to an emergency. The second responder is usually the first responder's bitch.
Dialogue Between a First and Second Responder
SECOND RESPONDER: I'm here! What happened?
FIRST RESPONDER: Well, it's about time. What took you so long?
SECOND RESPONDER: You see....
FIRST RESPONDER: Ugh, I don't want to hear it. You might as well be the third responder.
SECOND RESPONDER: Yikes! That guy's a real a**hole.