Cathy - thanks for the link to the chart - that's interesting. My DS5 (the one with fewer learning issues than his twin brother) has peanut allergy and has gotten hives from peanut vapor. Fortunately his classroom is peanut free, but he too has brought home holiday treat bags with candy containing peanuts (peanut butter cup, snickers), put together by the well-meaning room mom. We're just lucky he didn't eat it without asking first - it first happened when he was only 3, but continues to be a sore spot for me.