"Usually I kill people for 50 cents but you Antonio, you are my friend;
I kill you for nothing!"

Chico: Right now I'd do anything for money. I'd kill somebody for money. I'd kill *you* for money.
[Harpo looks dejected.]
Chico: Ha ha ha. Ah, no. You're my friend. I'd kill you for nothing.
[Harpo smiles.]

The Good, the Bad and the Ugly?