I must admit I totally failed! I had forgotten that I had the possibility of being on the 3 class even though seatmaps were showing 767.

I just check my butt right into business class and only after I boarded did I remember what I had failed to do. By that time the F cabin was full.

I still slept all the way to Tokyo though.

Cheers,

And remeber, don't do dumb things.