The Adhesive Duck Deficiency

Summary
Leonard is with Rajesh and Howard on a camping trip to watch the Leonid meteor shower, but all three succumb to 'magic' cookies they get from Deadhead campers nearby. Hilarity ensues as their minds expand and the munchies set in. Back at home, Sheldon investigates cries for help from across the hall: Penny has slipped in the shower and dislocated her shoulder. Sheldon is enlisted to get her to the emergency room. Penny is neither dressed (yet) nor can she drive her car. Sheldon has yet to drive a real car and his driving simulator experience was a disaster. The trip to the hospital is slow but they get there fine and, by the end of the episode, Penny (under the influence of strong painkillers) is rather happy with Sheldon's help. She gets him to sing "Soft Kitty" with her.

Title reference: Whimsical, sticky non-slip appliqués that Sheldon has in his bath tub.