Appearing on the Graham Norton Show last year, Ruffalo casually let drop this hilarious tidbit: A fellow actor once pranked him into smoking a joint in front of a live audience during the opening night of a play.
"There was a play that I did where I smoked a joint in the first scene," Ruffalo tells Norton. "And of course there was a very naughty young actor that I was in the play with who, on the opening night with all of the critics, he slipped a real joint onto the prop table."
The story itself is enough to give you a contact high, but the way Ruffalo tells is nothing short of Oscar-worthy.
[H/T: Vanity Fair]