Funny, but I disagree that sitting next to the elderly is like 1st class seating.
From my experience an elderly couple is often talking. I don't mean "elderly" as like 60 as some kids think, but like 70/80 and up.
Usually it's one spouse explaining what just happened because the other spouse doesn't "get it" or can't hear or can't see or whatever.
Granted, it's usually quieter than some kids yelling THEIR stuff... but hardly silent. And in a twisty film like "Inception" it's REALLY annoying to hear one spouse have to explain every single bit in every single scene.
Seriously... Inception was just an annoying experience due to that fact alone. But even still, it was less annoying than "Woman who brings in baby to see 10PM horror movie" or "loud teens saying stupid stuff"
The rest of the diagram... I can agree with. Including the "Toilet of Shame"
"Space. It seems to go on and on forever. But then you get to the end and a gorilla starts throwing barrels at you." -Fry, Futurama