measureAfter learning about Briggs & Riley’s design challenge of engineering lightweight yet durable bags, I heard that AirTran would start requiring obese passengers to buy a second airline ticket.

Southwest Airlines (which is merging with AirTran) famously required overweight movie director Kevin Smith to buy a second seat in 2010.

But the airlines are not trying to embarrass or discriminate against obese passengers. The policy is that if you can’t fit in the airplane seat without lifting the arm rest, you need to buy a second seat.

When my husband and if flew to Hawaii for our honeymoon, an enormous woman plopped herself down next to me – or, rather, on top of me. She literally took up more than half of my seat. My husband told the stewardess that his newlywed bride was being crushed and she took pity on us, moving us to an empty row.

I understand that excess weight on the plane uses more fuel, so if I buy the beautifully designed Briggs & Riley luggage (I am particularly eyeing the new 4 wheeled spinner, which can roll sideways down narrow airplane aisles), shouldn’t I get a rebate for taking up less weight? In fact, shouldn’t kids fly for less money, since they weight less, and cost the airlines less in fuel.

Maybe airlines can come up with a weight limit on passengers and their luggage. Anything over that weight, whether due to eating too many Krispy Kremes, or packing too many hardcover books, will cost you extra.

Just don’t sit on my seat.