Ever tried planting a fake clue in your story, only for your beta readers to hurl their Kindles across the room yelling "Cheat!"? We've all been there. Red herrings are the spicy salsa of cosy mysteries, adding zing without overwhelming the dish. But get them wrong, and your readers feel tricked instead of thrilled. The secret? Craft them like a magician's sleight of hand: divert attention smoothly, never shove the rabbit up their sleeve.