OCD brought Thornton and Zevon together
Eccentric actor Billy Bob Thornton became besotted with late rocker Warren Zevon after discovering they both suffered from obsessive compulsive disorder.
The Monster’s Ball star - ex-husband of actress Angelina Jolie - was caught manically inserting and removing his post from the letterbox by Zevon, who recognised the affliction and struck up a profound friendship which lasted until Zevon's death last year from lung cancer.
Thornton explains: "I always loved Warren Zevon's music. He was one of my good friends dating back to the 1980s. We met over obsessive compulsive disorder when we were neighbours in West Hollywood.
"He saw me at the mailbox taking my mail out and putting it back three times, and he said: 'You have that too, huh?' I adored him from then on."
