Dax Shepard is remembering a low point in his battle with addiction.

Shepard recounted a drunken 2004 interview on Late Night with Conan O’Brien when speaking to Blake Griffin on his Audible podcast The Pursuit of Healthiness. He described the performance as “the only career wreckage-y thing I did,” which resulted in his being briefly banned from the show.

The comedian claims he was “blackout drunk” during the “Conan” pre-interview, during which producers lay up stories and talking points for the host, and was awoken by hotel security barely 20 minutes before the recording.

“I show up on the show, I don’t know what he’s talking about. I can tell he’s queuing me up for stories I’ve told, but I don’t know any of the stories. So, I’m just doing what I can to be funny out there and I am a mess.” Something about Shepard feels odd from the moment he walks onto the stage. The actor wanders through an eight-minute interview after falling backwards over a chair and damaging a coffee table. “It was fine for the audience. But for him, what a disaster. I didn’t know any of the stories,” he remembers. “So I was banned from that show for some years, until I got sober and I got myself back on it and now I’ve been on it a bazillion times.”

Shepard claims that the build-up to the concert was just as bad. On his way to acquire cocaine while on vacation in Hawaii, the actor was involved in a car accident. He bought crystal meth instead of cocaine, which he did anyhow. The actor goes on to say that he was so sick from the trip that he binge-drank at the airport to get on the plane.

“In popular television shows and pop culture, we do have this notion of ‘a bottom,’ but most of the recovering addicts I know, there’s multiple, multiple bottoms,” Shepard says.

Shepard has already spoken frankly about his experience of substance misuse. On an episode of his own podcast, Armchair Expert, recorded while he was seven days sober last year, he disclosed that he had relapsed with pills. He claimed he was “very proud” of his 16 years of alcohol and cocaine abstinence, but said he hadn’t been “not been sober in the way I would like to be sober, where you don’t have secrets and you’re not afraid to tell people about the gray area you’re going through.”

“I now feel again like my life’s going to get better. I’m going to feel less sick from it, I’m going to be less sweaty every night,” he added.

Soon after, he acknowledged on The Ellen DeGeneres Show that he didn’t want to tell his listeners the truth, but that he felt compelled to do so in order to be honest with individuals on their own recovery journeys. “I really cherish that,” he said of individuals reaching out to him at various stages of recovery, seeking assistance or simply sharing their own experiences.

Shepard recently made news for an interview on his podcast with Prince Harry, in which the rebellious royal claimed that his father, Prince Charles, had passed down a “cycle” of genetic agony and suffering to him, which he and his wife Meghan Markle came to Los Angeles to break.