diff --git a/bot/scripts/stream-test/human.mjs b/bot/scripts/stream-test/human.mjs
index 90b534a..9cc40bd 100644
--- a/bot/scripts/stream-test/human.mjs
+++ b/bot/scripts/stream-test/human.mjs
@@ -61,7 +61,7 @@ export async function humanClickXY(sx, sy) {
 // Bring an element into view using a REAL wheel scroll (not a DOM
 // scrollIntoView). Returns its viewport box, or null if it can't be revealed.
 async function bringIntoView(page, locator) {
-  const ih = await page.evaluate(() => window.innerHeight);
+  const { iw, ih } = await page.evaluate(() => ({ iw: window.innerWidth, ih: window.innerHeight }));
   for (let i = 0; i < 14; i++) {
     const box = await locator.boundingBox().catch(() => null);
     if (box && box.y >= 70 && box.y + box.height <= ih - 70) return box;
@@ -69,7 +69,13 @@ async function bringIntoView(page, locator) {
     await xdo(['click', button]); await xdo(['click', button]); await xdo(['click', button]);
     await sleep(rand(120, 240));
   }
-  return await locator.boundingBox().catch(() => null);
+  // Loop exhausted: only accept the final box if it actually lies inside the
+  // viewport on BOTH axes. Otherwise refuse, so the caller fails instead of
+  // clicking a coordinate that is still off-screen.
+  const box = await locator.boundingBox().catch(() => null);
+  if (!box) return null;
+  const onScreen = box.x >= 0 && box.y >= 0 && box.x + box.width <= iw && box.y + box.height <= ih;
+  return onScreen ? box : null;
 }
 
 // Locate a Playwright element, real-wheel it into view, move the real cursor