I heard a report from the first-responders at a car crash he was involved in.
They all agreed he was the most insufferable and arrogant jerk they had ever met.
“You know who I am????”
FWIW.
From Warren Moon’s page at Wiki:
“In March 2011, Moon stepped back in the limelight while working as a “mentor” to Cam Newton, who became the Overall #1 2011 NFL Draft Pick to the Carolina Panthers. Moon publicly stated that Newton was being unfairly criticized for character flaws, lack of experience, and low football IQ and that the only reason that Newton was being targeted by football analysts and sports-writers was because he is African-American.”