Who does that?

I recently flew a public carrier again. Yes, they still have the special lane for the first class people. Wouldn't the people in first class rather be seated last, and avoid the rest of us riff raff? But, OK.
I met a new favorite person: Mr. I have no idea how this works. I kind of feel for the guy, but flying isn't that hard. If your boarding pass says "Group 3" and you can read it and say it out loud to the people around you, you should probably wait until group 3 is called and not stand in front of the ticket reading machine.
Of course this was not his only difficulty. He also had about 3 minutes worth of trouble with the overhead bin.
But he is not the only thing grinding my gears.
Who are the people who partially fill out the crossword and sudoku puzzles? and in pen? What? was it too tough? Was the flight too short? did you get bored?
I don't really think that people who do these want your help. These are not really team events.
And just so you know, the Sky Mall catalog is "Free. Take it and we will replace it." It says so right on the cover. So you don't need to tear out the pages you want. You condemn the rest of America to a month of not knowing what is on the fourth page of the Design Toscano ad, or the latest innovation from Hammacher Schlemmer. I mean one can only read the safety card so many times.