Fathers and sons

Who is the fastest?
Three boys are in the schoolyard bragging of how great their fathers are.

The first one says, "Well, my father runs the fastest. He can fire an
arrow, and start to run, I tell you, he gets there before the arrow."

The second boy says, "Ha! You think that's fast! My father is a
hunter. He can shoot his gun and be there before the bullet!"

The third one listens to the other two and shakes his head.. He then
says, "You two know nothing about speed. My father works in the Govt
department. He stops working at 5:00pm and he is home by 3:45pm !!"