Just after a month in rehab, Terminator 3 star Nick Stahl bailed on treatment. Going against doctors' orders, the 32-year-old opted to check himself out. The father of one has been battling serious substance abuse issues for a while now. And it doesn't look like he's anywhere near getting clean. According to one insider, Stahl is in serious trouble. The source reveals, "He left a week ago. He walked out against doctors' advice. He just didn't want to be there anymore...It is very sad. He's still struggling and has yet to hit rock bottom. Everyone is extremely worried about him." Stahl was supposedly seen in downtown L.A. following his departure from rehab, says E! News. Before checking into rehab, Stahl was frequenting the drug-infested Skid Row. He eventually decided to get help. However, his urge to get off drugs was obviously eclipsed by his urge to do them. Hopefully, Stahl will come to his senses before it's too late.