WATCH: Robert Downey Jr. Walks Out of Interview After Reporter Gets All ‘Diane Sawyer’

Here’s one way to get on Robert Downey Jr.’s bad list.

A reporter from the UK got a little carried away during an interview with the actor this week. What starts as a pretty normal, even at moments engaging chat about Iron Man, Avengers: Age of Ultron and RDJ’s superhero thoughts from his childhood is anything but, just minutes later.

We can all thank Channel 4 News’ Krishnan Guru-Murthy for this not-so-heroic moment, after he decided it was a good idea to bring up an old New York Times interview, RDJ’s dad and yes, RDJ’s druggie past.

Perhaps Mr. Guru-Murthy should take a few pointers from this budding journalist for his next celebrity sit-down:

Watch it all go horribly down, above. (If you’re pressed for time, things start getting super awkward around the 4-minute mark).

Avengers: Age of Ultron opens in the U.S. May 1.