PCP

There's a man standing on a bench in a public park
He's pointing at people and laughing and screaming shit at them
The people walk by and don't pay any attention to him
They figure he's just some crazy motherfucker and they should keep the fuck away from him
The man pulls his hat off and starts ripping out large hunks of his hair and eating it
As he screams, hunks of hair mixed with spit fall out of his mouth and stick to his face
He pulls a knife out of his pocket and saws off one of his ears
He eats the ear
A moment later, he does the same to the other ear
He chokes on the second one and coughs it up
He spits it out, the ear lands on the grass
He gouges one of his eyes out and eats it
He passes out
Someone calls an ambulance and he and the chewed up ear are taken away