This isn't directly on point but is a related question...if you are on board a flight with pets, what happens if someone has allergies? For example, I was on a DL flight two years ago, and the woman next to me had two pets - a dog and a cat. I have absolutely terrible allergies to some (but not all) cat breeds. Despite the fact this woman had TWO pets, I was told nothing could be done - my only option was to switch to another flight at my expense (complicating the situation was that the flight was full and this woman was too large to put the armrest down, which DL also insisted they could do nothing about). Needless to say, I was rather sick by the time we landed. Now, obviously, this was an extreme case, but raises an interesting question. Will CO accomodate those with allergies? Does the animal have to go in cargo? If the flight is full and seats cannot be switched, will CO put the allergic (or pet-carrying) person on the next flight?