"I always limit my chances of an upgrade by not accepting the first row! And you people should know that! Especially since I'm a 1K! There must be a little note somewhere on your magic computer screen!"
Loser. There are all of 8 F seats on the A319. Take away four, and you are left with...a good chance of sitting in Y.
By the way, I never sit in the back row of F. Maybe if I were on that flight we could have swapped.