And because I’m watching the screen so closely, I start bagging my groceries late, fumble with my wallet, and awkwardly leave my shopping cart blocking the lane like a metal crisscrossed castle knight enforcing a firm “Thou shall not pass” law in its trademark silence.
What is the meaning of "firm" in this sentence?
It's from "The Book of Awesome"?
What is the meaning of "firm" in this sentence?
It's from "The Book of Awesome"?
