Do you have a loud, chaotic, emotionally-armored, neurodivergent sibling who thinks yelling from another room counts as communication?Gigi does.His name is Sau.And this is his manual.Sau for Dum-Dums is a hilarious, unhinged, and surprisingly accurate field guide to understanding the Sau Model - a big brother who can rewire a house in thirty minutes but cannot clean a toilet to save his life. Written by his Irish-twin sister, this parody user manual breaks down: - Why he argues even when he agrees- Why he meets a mysterious Mushroom Lady(TM)- Why he can't sit still (ever)- Why he swears it's Tourette's (it's not)- Why his Soft Mode only appears for 2-7 minutes- How to love him without losing your sanityEqual parts roast, heart, and sibling therapy, this book is for anyone with a noisy brother, an emotionally complicated family member, or a lifelong chaotic bestie you somehow still adore.If you've ever thought, "I need a manual for this man..."you're holding it.