At least that way you have less chance of the 18 stone (x lateral acceleration) coming sideways at you.
Quite.
I just can't quite understand people who know they will not fit in a seat expect to do so. After all do they go clothes shopping and complain after picking up something that is obvioulsy 3, 4 or 5 sizes too small that it does not fit? No they buy a bigger size - and sometimes pay a bigger price.
I doubt many of the people in this situation realise it's not just about comfort, it's safety for them and fellow PAX.
Mind you I expect Virgin are pretty careful about this these days.