I thought there was a law about this, but I can't find it either here or just with Google, but I thought that passengers over a certain weight were required to purchase two seats when traveling. The closest info I could find was here:

http://www.smartertravel.com/travel-....html?id=15819

I just flew back from Miami yesterday, and in front of me, a 300 pound guy (maybe 6'4", but still big) was sitting in a seat-and-a-quarter with the armrest up, and a small woman came to sit next to him. She basically dealt with it and tried to sleep most of the time.

I can't imagine myself dealing with that, but I'm not sure what I'd do. Clearly, if the armrest can't go down, I wouldn't be getting the seat I paid for.

Has anyone been in this situation or seen it? Do the flight attendants basically kick off the larger passenger? Is there, in fact, any rule here?

Mostly just curious in case it happens to me . . .