diff --git a/messages/de.json b/messages/de.json
index 21da79b1a..adeb372d7 100644
--- a/messages/de.json
+++ b/messages/de.json
@@ -2011,11 +2011,11 @@
         "description": "Dokumentiere 300 eingenommene Medikamente."
       },
       "overIntake1": {
-        "title": "Idiot",
+        "title": "Doppelt genommen",
         "description": "Nimm mindestens einmal mehr ein als vorgesehen."
       },
       "skippedIntake1": {
-        "title": "Lazy Boy",
+        "title": "Pause eingelegt",
         "description": "Überspringe mindestens eine geplante Einnahme."
       },
       "passkeyCreated1": {
diff --git a/messages/en.json b/messages/en.json
index 593256a07..10a953834 100644
--- a/messages/en.json
+++ b/messages/en.json
@@ -2011,11 +2011,11 @@
         "description": "Record 300 taken medication events."
       },
       "overIntake1": {
-        "title": "Idiot",
+        "title": "Double take",
         "description": "Take medication at least once more than planned."
       },
       "skippedIntake1": {
-        "title": "Lazy Boy",
+        "title": "Stepped back",
         "description": "Skip at least one planned intake."
       },
       "passkeyCreated1": {
diff --git a/src/lib/__tests__/achievements-no-insults.test.ts b/src/lib/__tests__/achievements-no-insults.test.ts
new file mode 100644
index 000000000..9c6e30423
--- /dev/null
+++ b/src/lib/__tests__/achievements-no-insults.test.ts
@@ -0,0 +1,57 @@
+import { describe, expect, test } from "vitest";
+
+import deMessages from "../../../messages/de.json";
+import enMessages from "../../../messages/en.json";
+
+/**
+ * v1.4.19 A8 / F-03 — `achievements.list.overIntake1.title === "Idiot"` and
+ * `achievements.list.skippedIntake1.title === "Lazy Boy"` were shipping in
+ * both EN and DE bundles. For a personal health app that translates to a
+ * literal insult any time the user double-doses (e.g. forgot they already
+ * took it) or skips a dose. This guard pins the fix and prevents copy-paste
+ * regressions when adding new badges.
+ */
+
+const BANNED = ["idiot", "lazy boy", "lazyboy", "loser", "stupid", "dummy"];
+
+interface MessagesShape {
+  achievements?: {
+    badges?: Record<string, { title?: string; description?: string }>;
+  };
+}
+
+function readBadgeTitles(
+  messages: MessagesShape,
+): { key: string; title: string }[] {
+  const badges = messages.achievements?.badges ?? {};
+  return Object.entries(badges).map(([key, entry]) => ({
+    key,
+    title: entry.title ?? "",
+  }));
+}
+
+describe("achievement titles", () => {
+  test.each([
+    ["en", enMessages as unknown as MessagesShape],
+    ["de", deMessages as unknown as MessagesShape],
+  ] as const)("%s bundle contains no insulting titles", (_locale, bundle) => {
+    const offending = readBadgeTitles(bundle).filter((entry) =>
+      BANNED.some((b) => entry.title.toLowerCase().includes(b)),
+    );
+    expect(offending).toEqual([]);
+  });
+
+  test.each([
+    ["en", enMessages as unknown as MessagesShape],
+    ["de", deMessages as unknown as MessagesShape],
+  ] as const)(
+    "%s overIntake1/skippedIntake1 are translated, not the literal English shipped before",
+    (_locale, bundle) => {
+      const badges = bundle.achievements?.badges ?? {};
+      expect(badges.overIntake1?.title).toBeDefined();
+      expect(badges.skippedIntake1?.title).toBeDefined();
+      expect(badges.overIntake1?.title).not.toBe("Idiot");
+      expect(badges.skippedIntake1?.title).not.toBe("Lazy Boy");
+    },
+  );
+});