 //
 const double RADIANS_PER_DEGREE = 0.0174532925;
 
-const int LEFT_LIMIT = 40;
-const int RIGHT_LIMIT = 130;
+const int LEFT_LIMIT = 90;
+const int RIGHT_LIMIT = 180;
 
 // milliseconds to wait between servo movement: when servo is gently oscillating
 const int GENTLE_DELAY = 30;

{
  for (int ii = 0; ii < numOscillations ; ii += 1) {
    delay(TURN_AROUND_DELAY);
    //  Serial.println("------------------------------------------------------------");
  
    digitalWrite(13, HIGH);   // turn the LED on (HIGH is the voltage level)
    angle = turnServo(myservo, angle, random(angle, RIGHT_LIMIT - SHAKE_OFFSET_ANGLE) + 1, GENTLE_DELAY);
  
    delay(TURN_AROUND_DELAY);
    //  Serial.println("++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++");
  
    digitalWrite(13, LOW);    // turn the LED off by making the voltage LOW
    angle = turnServo(myservo, angle, random(SHAKE_OFFSET_ANGLE, angle), GENTLE_DELAY);
  }

  return angle;

void loop()
{
  // randomly determine which behavior
  int behaviorMode = random(4);
  Serial.print("BEHAVIOR MODE:\t");
  Serial.println(behaviorMode);

  switch (behaviorMode) {
    case 0:
    case 1:
    case 2:
      currAngle = oscillateGently(currAngle, random(3, 6));
      break;

    case 3:
      currAngle = shakeServo(currAngle, random(2, 4));
      break;
  }

