diff --git a/exam/ex08/main.py b/exam/ex08/main.py
index 3f2d9a3..d74039c 100644
--- a/exam/ex08/main.py
+++ b/exam/ex08/main.py
@@ -26,9 +26,9 @@ class BrownIterator(object):
 		self._ys = self._ys + np.sin(theta)
 
 		# Reflect the particles
-		self._xs[self._xs > 3] += 1.5 * (3 - self._xs[self._xs > 3])
+		#self._xs[self._xs > 3] += 1.5 * (3 - self._xs[self._xs > 3])
 		self._ys[self._ys > 3] += 1.5 * (3 - self._ys[self._ys > 3])
-		self._xs[self._xs < -3] += 1.5 * (-3 - self._xs[self._xs < -3])
+		#self._xs[self._xs < -3] += 1.5 * (-3 - self._xs[self._xs < -3])
 		self._ys[self._ys < -3] += 1.5 * (-3 - self._ys[self._ys < -3])
 
 		return self._xs, self._ys