Brian,
just read TSG and saw he requested Paul Newman's Balsamic Vinegarette, which from memory has garlic in it. As per the instructions, Tiger is allergic to garlic. So I went to the Newman's website and sure enough:
All Natural Ingredients:
Vegetable Oil (Canola Oil and/or Soybean Oil, Extra Virgin Olive Oil), Water, Balsamic Vinegar, Salt, Sugar, Garlic, Distilled Vinegar, Spice, Onion, Red Bell Pepper, Xanthan Gum, Paprika (For Color)