diff --git a/src/java/com/threerings/media/animation/BobbleAnimation.java b/src/java/com/threerings/media/animation/BobbleAnimation.java
index 0e129bc7..c1e9d2fa 100644
--- a/src/java/com/threerings/media/animation/BobbleAnimation.java
+++ b/src/java/com/threerings/media/animation/BobbleAnimation.java
@@ -75,8 +75,8 @@ public class BobbleAnimation extends Animation
         // calculate the latest position
         int dx = RandomUtil.getInt(_rx);
         int dy = RandomUtil.getInt(_ry);
-        _x = _sx + dx * (RandomUtil.getChance(2) ? -1 : 1);
-        _y = _sy + dy * (RandomUtil.getChance(2) ? -1 : 1);
+        _x = _sx + dx * (RandomUtil.getBoolean() ? -1 : 1);
+        _y = _sy + dy * (RandomUtil.getBoolean() ? -1 : 1);
     }
 
     @Override
diff --git a/src/java/com/threerings/media/animation/SparkAnimation.java b/src/java/com/threerings/media/animation/SparkAnimation.java
index b8bdc716..aecbd69c 100644
--- a/src/java/com/threerings/media/animation/SparkAnimation.java
+++ b/src/java/com/threerings/media/animation/SparkAnimation.java
@@ -120,7 +120,7 @@ public class SparkAnimation extends Animation
      */
     protected int randomDirection ()
     {
-        return RandomUtil.getChance(2) ? -1 : 1;
+        return RandomUtil.getBoolean() ? -1 : 1;
     }
 
     @Override