Ben Stiller is still hanging his head in shame after touring the White House with Ricky Gervais, because the British funnyman showed up at the U.S. President's home in his pyjamas.
The actors, who co-star in upcoming film Night at the Museum: Battle of the Smithsonian, paid a recent visit to Washington, D.C. to premiere the new movie.
Gervais had already sent his business attire to the dry cleaners when they received a last-minute invitation to the home of President Barack Obama.
But The Office star was determined to make the trip even if it meant posing for pictures in his pyjamas - and Stiller is still haunted by his co-star's crude behaviour.
He says, "I went (on the tour) with Ricky Gervais because he's in the movie. They told us to dress business. I wore a suit and tie. And Ricky Gervais, British Ricky Gervais, shows up in a black t-shirt and draw string yoga pants. It's very beyond casual - like ready to meditate or something. And then he's running around like, 'Oh, this is where our American president lives! Where's the dog?'"