Dax Shepard, 2004 — Appearing so drunk he was "banned" from Late Night with Conan O'Brien He was “blackout drunk” before the taping, he confessed, and the resulting interview was a disaster.
The actor got lost in his own stories and also fell behind when the host called for response. He even prompted the toppling of a coffee table at one point.
While the audience appeared to love the chaos, Shepard himself later deemed the interview “career wreckage-y” and explained he was woken up by hotel security just 20 minutes before he took the stage
The incident became infamous, and it appears to have affected his relationship with the show for a time afterward.