People have been calling Alex Smith "boring" throughout his NFL career. Despite some decent numbers with the Chiefs, he is a labeled a game manager who can't make plays deep downfield. And maybe those people are right to a large extent, but that kind of talk can eat away at a man.
Sometimes, he just snaps.
Smith had to avoid four sacks AND his own teammate to get this pass off, then he threw a beauty to veteran Jason Avant, who made a great grab.