Also, if we take the logic of show of you to its logical conclusion, we should weight people before they board the plane and charge them relatively, since heavy people use more fuel to transport. It is the nature of doing business that you might make more money off some people than others. So airlines might lose money because they have to give obese people two seats. So what? They are under no obligation to make sure they profit off of each person equally.

Thirdly, if it makes the rest of us a bit more comfortable, I have no problem paying a bit extra to subsidize the large people, if the other option is having them buy one seat which makes them and everyone else uncomfortable. The fat people didn't decide how big to make the seats: that was airlines decision. If they decided to only make them big enough for 98% of the people who need to fly, then perhaps they should make accommodations for the people they chose to exclude.

My main issue is how to implement it. Do you have a weight cutoff, or do you have a big box as I jokingly alluded to earlier? How do you prevent it being abused?

Airlines have costs to cover and, quite frankly, flying weight (luggage or human) requires fuel, which requires money. So if the airlines want to cover their costs (and they can't do it by charging for extra seats for large people) then the skinny tax is the extra money everyone else has to pay so the airlines can give free seats to large people.

At the time I would have been quite happy if he had been charged for 2 seats or at least 1 1/3 and my rate reduced by a third. It was quite hot and I couldn't move for the entire 2 1/2 hours.

Hmm… I wonder how they are going to determine who is “large enough of girth” to warrant two seats for the price of one. I can imagine some who are somewhat husky might try to take advantage of the system. Are there going to do something similar to carry-on luggage measurements:

“If you can fit in this box, you only get one seat. Sorry”