Jack Osbourne is 'saddened' by Brit rocker Pete Doherty's addiction to drugs - and finds it frustrating he refuses help. Osbourne spent time in rehab in 2003 suffering addictions to drink and drugs, but recovered and has been clean and healthy since. And although Doherty is trying yet another stint in detox himself, he fears Doherty will struggle to kick his habits. He says, "Pete Doherty's obviously in a bad way. It's sad to see someone in that position, but you've got to want to get help to get better and it's very apparent that he doesn't. "He's had all the opportunities in the world, which I find frustrating because there are people who want help and are never given the chance."