When Julia Roberts revealed a somewhat twisted delight in frightening her young children, Ellen DeGeneres took it upon herself to give the actress a good taste of her own medicine. In what just might be a record for the prankster, Ellen scares Julia not once, but twice! Afterwards, the Mirror, Mirror star admits she "peed a little" from the shock. Watch the clip for a sneak peek at Roberts' interview on The Ellen DeGeneres Show airing Friday, March 23rd. Check your local listings.