“One-person-one-fare”

Oh Canada!  A Canadian tribunal in early 2008 ruled that Canadian airlines could not discriminate against the obese by charging them for more than one seat if they spilled over into the accompanying seat.  The tribunal said that obesity is equivalent to having a disability.  I am a strong believer in individual rights and protections against discrimination, but I recently was traveling within the US and was seated next to an oversized person … luckily for both of us, I am not a big person.  This lady took at least a quarter of my seat.  What about my right to a whole seat?  Maybe I should have asked for a quarter percent refund, since I paid for a full seat and expected to get one.  In fact, the passenger could not even lower the arm rest.  I am not trying to attack obese people, but if you are have a waist size greater than 50 inches, why shouldn’t you have to buy two tickets.  I don’t think this is a bias; you are paying for what you get.  On one of my recent flights I did not get what I paid for.  What about one-person-one-fare-one-seat?