Not if my perceived risk was that by shoving me, you are prepared to take my life
I know that you know what would become of you if you shot someone for touching you, and you (as a "civilian"/peasant) tried explaining to a prosecutor that your perceived risk was that by shoving you, that someone was prepared to take your life.
Think "George Zimmerman".
"Perceived risk" only applies in "magical" situations, as in you're wearing a magic suit, with a matching shiny magic badge...