Some of these are very humorous because of the cultural disconnect (as an American, I have never experienced somebody asking to put their seat back).
"An expert on a very niche subject" made me laugh out loud the hardest, because it's the one that's most "just a guy", and yet it's also exactly how it's described.
More about the expression, but the glasses are pulling their weight here too. Modern masterpiece.
The airplane seat was the only one that needed no explanation for me. I could tell he was about to ask specifically to put his seat back.