diff --git a/app/src/main/kotlin/io/flamenet/messenger/app/ChatScreens.kt b/app/src/main/kotlin/io/flamenet/messenger/app/ChatScreens.kt
index 81bcd05..214548f 100644
--- a/app/src/main/kotlin/io/flamenet/messenger/app/ChatScreens.kt
+++ b/app/src/main/kotlin/io/flamenet/messenger/app/ChatScreens.kt
@@ -1953,7 +1953,16 @@ fun ColumnScope.ChatScreen(
                         )
                     }
                     DropdownMenuItem(
-                        text = { Text(if (line.mine) "Unsend" else "Delete for me") },
+                        // 🔴 **Said "Unsend" on your own messages and did
+                        // nothing of the kind (android#18).** `deleteMessage`
+                        // reaches `vault.deleteLine` and stops there — no
+                        // envelope leaves the phone, and the recipient's copy
+                        // stays exactly where it is. Somebody who sent to the
+                        // wrong person tapped it, watched the bubble vanish,
+                        // and had no way to find out. "Delete for me" was
+                        // already the other half of this ternary, and it was
+                        // always the accurate half.
+                        text = { Text("Delete for me") },
                         onClick = { model.deleteMessage(line); menuOpen = false },
                         modifier = Modifier.testTag("delete-message"),
                     )
@@ -3950,8 +3959,8 @@ internal fun memberLabel(
  * rather not. The cursor sits at the end for the same reason.
  *
  * ⚠️ Saving nothing is refused rather than treated as a delete. Emptying the
- * box is the shape of a slip, and "Unsend" is right there in the same menu for
- * anybody who meant it.
+ * box is the shape of a slip, and "Delete for me" is right there in the same
+ * menu for anybody who meant it.
  */
 @Composable
 private fun EditMessageSheet(
diff --git a/app/src/test/kotlin/io/flamenet/messenger/app/DestructiveLabelsTest.kt b/app/src/test/kotlin/io/flamenet/messenger/app/DestructiveLabelsTest.kt
new file mode 100644
index 0000000..9caae43
--- /dev/null
+++ b/app/src/test/kotlin/io/flamenet/messenger/app/DestructiveLabelsTest.kt
@@ -0,0 +1,89 @@
+package io.flamenet.messenger.app
+
+import java.io.File
+import kotlin.test.Test
+import kotlin.test.assertTrue
+
+/**
+ * A destructive button must not claim more than it does (android#18).
+ *
+ * 🔴 **"Unsend" did not unsend.** The message menu offered it on your own
+ * messages and called `deleteMessage`, which reaches `vault.deleteLine` and
+ * stops there. No envelope leaves the phone; the recipient's copy stays exactly
+ * where it is. Somebody who sent to the wrong person tapped it, watched the
+ * bubble vanish, and had no way to find out.
+ *
+ * ⚠️ **Worse than an overclaiming page**, which is why this is a test and not
+ * a one-line fix left to stay fixed. A page that overclaims can be read
+ * sceptically. A button that reports success cannot: the feedback IS the claim,
+ * and it arrives at the exact moment the person is most relieved to believe it.
+ *
+ * A source scan, and coarse on purpose. It cannot prove every label is honest.
+ * It proves this particular word cannot come back on a local-only action
+ * without somebody deleting a test that explains why — and it is a plain JVM
+ * test, so it costs no emulator.
+ */
+class DestructiveLabelsTest {
+
+    private fun uiSources(): List<File> {
+        // From `app/build/classes/...` back to the module root, whatever the
+        // working directory happens to be. Resolving against a relative path
+        // is how this kind of test silently scans nothing.
+        var dir = File(System.getProperty("user.dir"))
+        while (!File(dir, "app/src/main/kotlin").isDirectory && dir.parentFile != null) {
+            dir = dir.parentFile
+        }
+        val root = File(dir, "app/src/main/kotlin")
+        return root.walkTopDown().filter { it.extension == "kt" }.toList()
+    }
+
+    /**
+     * ⚠️ **Comments are stripped, and that is required rather than tidy.** The
+     * comment explaining this bug necessarily quotes the word it is about, and
+     * a guard that flags its own explanation is a guard somebody deletes.
+     */
+    private fun codeLines(body: String): List<String> =
+        body.lines()
+            .filterNot { it.trimStart().startsWith("//") || it.trimStart().startsWith("*") }
+            .map { it.substringBefore("//") }
+
+    /**
+     * 🔴 **The word promises the recipient's copy is gone.** Nothing in this app
+     * can do that yet: it would take a signed control envelope naming the `mid`,
+     * which the recipient acts on — and even then it is a *request*, so whatever
+     * the button eventually says must not promise more than "we asked them to
+     * remove it."
+     *
+     * When that lands, this test is the thing to update, deliberately, in the
+     * same change.
+     */
+    @Test
+    fun `no button says Unsend`() {
+        val files = uiSources()
+        assertTrue(files.isNotEmpty(), "scanned no sources — the walk found nothing")
+        for (file in files) {
+            codeLines(file.readText()).forEachIndexed { i, line ->
+                assertTrue(
+                    !line.contains("\"Unsend\""),
+                    "${file.name} line ~${i + 1} offers a button labelled \"Unsend\", but " +
+                        "nothing in this app removes a message from the recipient's device. " +
+                        "See android#18. If a real retract now exists, update this test in " +
+                        "the same change and say which envelope carries it.",
+                )
+            }
+        }
+    }
+
+    /**
+     * ⚠️ The walk is the part most likely to rot. A scan that finds no files
+     * passes every assertion in it, so this pins that it is actually reading
+     * the screen the bug was on.
+     */
+    @Test
+    fun `the scan actually reaches the chat screen`() {
+        assertTrue(
+            uiSources().any { it.name == "ChatScreens.kt" },
+            "the source walk did not reach ChatScreens.kt — this guard is scanning nothing",
+        )
+    }
+}