Supernatural creators intentionally stopped using umbrellas in the series after season 1. Show creator Eric Kripke explained that he didn't want the tough and fearless Winchester brothers to appear scared of rain. The decision was made after discussing with Kim Manners, who directed the episode with umbrellas. Kripke believes that cowboy demon hunters look cooler without an umbrella. Despite this, Kripke himself still uses an umbrella. The slip-up in the Bugs episode allowed fans to know the reason behind the absence of umbrellas in the series.