I've waited for a long time Yeah, the sleight of my hand is now a quick pull trigger reason with my cigarette Then say, "Your hair's on fire, you must have lost your wits, yeah"

All the other kids with the pumped up kicks You better run, better run outrun  my gun All the other kids with the pumped up kicks You better run, better run faster than my bullet.

He found a six-shooter gun In his dad's closet, and with a box of fun things I don't even know what But he's coming for you, yeah, he's coming for you

This shows that he was pushed to a point where he could see nothing but anger for the people who treated him terribly

It shows that the kid always got mistreated by everyone almost every day.

It shows how the kid was never given any attention by anyone and no cared for him.