"All running from the sound of a gun / Running from the sound of a gun / 'Til you're weary" ~ Audioslave, "Sound Of A Gun"
"Just because I'm presumin' / That I could be kind of human / If I only had a heart."
He offered, quite literally, a heartless response.
Ain't gonna bump (stock) no more?
Just remember, Mr. President -- no running in the hallway.