OK, this got funnier the longer I read.

> Buy a Big Mac before boarding the plane, and eat it whenever you want. Bring chocolate and other snacks.

If I ever end up sitting next to somebody who brought along a Big Mac...well, the plane better have empty seats somewhere else...

(I was touring NSW, Australia via rail some years ago and sat across from another tourist who was calmly consuming a large chocolate bunny. It's become such a strange memory that I have to wonder if he just did it to mess with people or what. By the time I got off the train I wanted my own bunny)