A few years ago, my flight was cancelled so I bought some fries from Five Guys (yummy). As soon as I got back to the gate, the GA waved me over and said he was putting me on a flight asap and I needed to run to the other gate.
I knew the fries would be smelly on the plane, so I threw them out on my way to my flight.
Unfortunately, even though the GA said he called the gate to tell them to hold the flight, he did not and the flight left without me.
Ohhhh, I so wanted those fries back! lol
I tend to take cold sandwiches, nuts, candy - non-smelly foods because I just feel that it would be less of a possibility that it would annoy other passengers. We are so cramped together, WHATEVER you do or eat is right there in your seatmates face.