There was a woman on the Jubilee Line this morning eating a Bacon and Egg McMuffin (with BBQ sauce).
The Jubilee line is pretty unpleasant at rush hour, what with having to wait for multiple trains before actually managing to squeeze on one, it's hot, it's crowded and it's sweaty. So add in someone having a McDonald's and it makes for a very unpleasant journey. The young woman next me had to spend the entire journey with her hand over her mouth and nose.
While it's not quite BA F, I would say the woman bringing smelly food on a rush hour tube train on a warm morning was being pretty selfish.
That said on the journey home yesterday, my face was in a man's very stinky armpit. I really couldn't choose which one I'd rather...