young Indian couple with a toddler in exchange for a middle seat. In my case, though, I was screwed either way. Either I keep my aisle seat and sit next to an 18 month old with only 1 parent nearby for the next 16 hours or squeeze into a middle seat. I chose to get screwed in a way that I could look like the good guy, so I moved.
After I switched, a flight attendant went out of her way to find me another aisle seat because she thought I was being nice in moving.