When Norton is eating Ralph's sandwich he stands up and a piece of the sandwich falls to the ground.
After Ralph removes the knobs on a dresser drawer for his costume, he dismisses Alice's concerns that she now won't be able to open the drawer until the knobs are back on. Immediately after, Ralph needs a flashlight from inside the same drawer, and despite it having no knobs, he opens it with absolutely no problem, without putting a knob back on it, and no mention is made of it.