As rage grows in the softball sentencing of Ethan Couch, a 16-year-old Texas boy who killed four people in a drunken driving incident, the psychologist whose testimony helped keep Couch out of prison admits he regrets the turn-of-phrase used to illustrate the teen's heightened sense of entitlement.

G. [expletive] Miller, who testified that Couch suffered from affluenza -- a condition that impaired his ability to connect actions to consequences, due to his hyper-privileged upbringing -- told Anderson Cooper 360 Thursday, "I wish I hadn't used that term.