Working with his wife Susan Downey, who produced on the revamped Sherlock Holmes flick was challenge for Robert Downey, Jr. After all, it isn’t easy to pull one over on the person you love.

Still, Downey says all the actors as well as the director, Guy Ritchie gave it their all to drive Susan Downey nuts - and nearly succeeded in giving her an ulcer.

Click onto media bar for Robert Downey, Jr.’s description of the hijinks on the set of Sherlock Holmes at the expense of his producer/wife Susan Downey.

Sherlock Holmes opens Christmas Day.