Kieran Culkin Admits He Swapped Mark Ruffalo’s Prop Joint for Real Marijuana When He Was 17: ‘I Thought This Was a Good Prank. I’m Stupid’

variety.com:

J. Kim Murphy Kieran Culkin has confessed. The star of “A Real Pain” and “Succession” admitted that he once swapped a prop joint for one spiked with real marijuana when he was cast in a stage production alongside Mark Ruffalo in 2000. “I was 17 and stupid,” Culkin said in a new interview with The Guardian. “I’m like, ‘I thought this was a good prank.

I’m stupid. Oh my God, I’m so sorry.’ But actually, they loved it. Mark says, ‘I haven’t smoked pot in 10 years. The second half’s going to be so much fun.’ There was this other actor who had never smoked pot in her life.

She goes, ‘Is this what being high is? This is lovely.’ And then Phyllis Newman comes in and goes, ‘I haven’t smoked pot since the 1960s.

Thank you, darling.’” Culkin, Ruffalo and their co-stars were featured in Playwright Horizons’ production of James Lapine’s play “The Moment When” at the time. “The stage manager comes stomping in and goes, ‘I don’t care whose it is, or what happened, but Kieran, give me the joint.’ I sheepishly handed her the roach and she said, ‘Ruin your life on your own time,'” Culkin continued. “I know, I know.