Before revision: In season 3 episode 14 ("The Einstein Approximation") of the TV series The Big Bang Theory, Sheldon seeks inspiration in a ball pit at a mall, then hides from Leonard, who then tries to retrieve Sheldon from the pit.
After revision: shoppingIn season 3 episode 14 ("The Einstein Approximation") of the TV series The Big Bang Theory, Sheldon seeks inspiration in a ball pit at a mall, then hides from Leonard, who then tries to retrieve Sheldon from the pit.