YMMV / Fullmetal Alchemist: Brotherhood E4 "An Alchemist's Anguish"

• Captain Obvious Reveal: Shou being Evil All Along isn't really surprising, considering that the first talking chimera he transmuted was in pain and suicidal, he neglects his young daughter in favor of his research, and wears Scary Shiny Glasses. The real shock comes from the sheer lengths he would go to to get what he wants.
• Catharsis Factor: Shou getting brutally killed by Scar, considering he callously transfused both his daughter and dog for a mere paycheck.
• Complete Monster: Shou Tucker, the Sewing-Life Alchemist, is known for his ability to create chimeras capable of speech. He's introduced to the Elric brothers as an awkward man with a 4-year-old daughter named Nina. With his State Alchemist license soon to expire, Tucker created another Chimera by fusing Nina and her dog Alexander into a miserable Half-Human Hybrid which is in constant agony. When the Elric brothers discovered Nina's new state, Edward's rage nearly drove him to kill Tucker. It is then revealed that the other speaking Chimera was actually his wife and Nina's mother, whom Tucker created by fusing her to another animal, earning him his State Alchemist status in the first place. Tucker refuses to admit what he did was horrible, going as far as to tell the Elric brothers that they shouldn't have a problem with his actions and that anybody else in his position would have done the same thing. While only appearing in one chapter, Shou Tucker manages to be one of the most depraved characters in the manga and Brotherhood anime.
• Crosses the Line Twice: Shou's death at Scar's hand (literally) is so unceremonious that it almost ends up being funny, especially since it's an appropriate end for someone with such an excessive sense of self-importance. Whereas almost everybody else who gets killed by Scar goes out fighting and/or has an expression of horror before their death to increase the drama, Scar just walks right up to Shou before delivering his signature Cruel and Unusual Death.
• Funny Moments: "I WILL NOT LOSE THIS TIME! I, EDWARD ELRIC, WILL USE MY CONSIDERABLE POWERS TO VANQUISH YOU!"
• Moral Event Horizon: Shou Tucker had already crossed this when he used alchemy to fuse his wife with an animal from his laboratory and turned her into a chimera for the sake of earning a state-sponsored license, dooming her to a Fate Worse than Death and eventual suicide. It was already horrible the first time, but the fact that he did this again two years later to his five-year-old daughter and her dog for the sake of keeping said license broke the MEH scale.
• Nightmare Fuel: Shou Tucker himself is terrifying. First, he looks like any other man walking down the street. Second, the mere thought that someone could transmute their own family into chimeras is absolutely sickening. Third, he is so devoid of empathy regarding the physical and mental damage he causes his own family, that he genuinely believes he's done nothing wrong and that others should not feel angry with him for it, which is unsettling all on its own.
• Obvious Judas: Roy's sombre recount of what happened to the first chimera Shou transmuted, Shou's Scary Shiny Glasses, and his Parental Neglect of his little daughter in favour of his research makes it very easy to figure out that something is wrong with him. Somewhat subverted in that the revelation of how depraved he really is in his desperation to keep his certification succeeds at being genuinely horrific.
• Tear Jerker: Nina being forcibly fused with her dog into a miserable abomination suffering from constant agony by her own father is one of the most horrific and heart-breaking moments in the entire series, if not any non-horror anime of all time. Tellingly, Ed would have killed Shou in his rage if Al hadn't restrained him. And it doesn't stop there; Trisha's Lullaby plays as the Elrics have to come to terms with the fact that the fusion is irreversible and there's nothing they can do to help Nina, her repeated pleas of "Can we play now?" drive Ed to let out a heart-rending scream of anguish, and Scar ultimately kills both Shou and Nina, the former as an act of justice for his crimes, the latter as an act of mercy to spare her the pain of being stuck as a chimera. Even at the end of the series when the Elrics recover their bodies, they never forget Nina and how they failed to save her. One positive outcome is that, after recovering their bodies, the Elrics begin research to create a branch of alchemy that can return chimeras to their original forms, so that what happened to Nina never happens again.

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