Ratatouille

The closest to a 5 star rating a film can ever be to me but what the fuck is Skinner's plan with the trap exactly? It's a genuinely stupid plan which just so happens to work out in his favor momentarily. Wouldn't the trap he set attract other rats or rodents instead? Does he just stay there waiting hoping Remy will take the bait? Does he have other plans? What the hell. It does nothing to the plot as well. Weird.