Mangled and Dead

You can eat worms, I don't care
You can be a clown at the fair
I'm walking down past you
You don't exist
But I've gotten used to that
I know my wild world
And if you jump to eat me
I'll shoot you in the head
You'll be mangled and dead
I'll blow the smoke, walk away
Can't you be my friend
Tell me you like me
I'm going down crying
What a sad life I got
But I know when to kill you
Dirty rotten stalking (skulking?) beast
And when the blood is running
From the center of your head
Your eyes will be staring
Caught looking at me
The surprise that subdued you
Was a man prepared to die
I'll not be beholden
At the teeth of a best