After Samoa Airlines introduced a "fatty tax" on their planes new airline legislation is being implemented world wide by Airline Authorities, not Ryanair, they just hate overweight baggage because their fat passengers do not fit in their narrow seats anyway!
The AA have offered several plausible reasons for the new legislation and here they are:
1) To confirm the total weight of planes before take-off is nearly impossible, costs too much and takes too much time to weigh every single passenger, so just tax fatties heavily (excuse the pun!) and keep them off planes altogether!
2) If fatties wish to fly they should purchase double seats, and be forbidden to eat over-priced Ryanair fatty snacks during flight just in case the plane becomes over-loaded and plummets earthwards!
3) United Airlines are also introducing an extra tax on hand-baggage for fatties. In the future they will only be allowed one paper bag filled with fattening goodies! Skinny people can then purchase more goodies, thus increasing the revenue of long-haul flights!
4) Global Airline Authorities have confirmed the fact that fatties on planes cause higher fuel costs and during flights they gain weight by eating too much garbage that normal people find disgusting, and if they all sit on one side or in the middle where larger seats are provided, the plane could tip over! Also, being environmentally friendly, airlines feel fatties are causing damage to the planet!
There is a list of other reasons for charging flying fatties more, but it's just to large (very punny) to spoof about. So Jaggedone suggests to obese people; purchase a fuel guzzling SUV, stop causing huge queues whilst boarding planes, get your fat butts out of our way and help save the planet!