Sound effects scene, technical errors scene
During this scene the sound effects person will randomly insert sounds throughout the scene that the actors must justify appropriately.
The actors start out and continue, a regular scene. At any time the sound effects tech can insert random sounds, and usually ones that have nothing to do with the context of the scene. The actors do best by justifying the noises in the context of the scene.
Keep using the same sound effect over and over again. Keep using the same justification for everything over and over again.