So, as a diabetic, I pack my own snack -- a peanut butter sandwich and an apple. What if I happen to be seated next to Mr. Allergic 2.Peanuts, and there's no other seats left on the aircraft, who's "condition" trumps the other?
Let's hope Mr. Peanut brings his meds because I ain't risking my health for his. I'm doing what I need to do to take care of my health-needs; it's a free country (or we're trying to keep it that way, anyways, despite the special interest groups and the lawyers) and he had better be prepared to take care of himself, too.
Kind of off-topic, should we ban pax from bringing their own liverwurst and onion sandwiches on board? I was on a red-eye from LAS to PIT not too long ago and dozing comfortably up against the wall (with my own travel pillow, thank you) and about an hour into the flight the person in the window seat in the row behind pulls something out of their carry-on and crinkle, crinkle, crinkle and OMG! What is that smell??? Yet, it was a strangely familiar stench -- it's, it's OMG! Liverwurst & onions! I thought I was going to lose my dinner. I had to wake up the rest of my row and get up and use the lav and take as long as possible just to get away -- and also to have a look and to see if my great-autie Dot had been reincarnated and was sitting behind me...