These are great. First 3 are brilliant. The second one is golden, I wish I had thought of that.

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.

The last one refilling detergent is a parody of The Milkmaid by Johannes Vermeer; everyone has seen it on textbooks and it has become a meme template on Japanese Twitter in recent years.

1: https://en.wikipedia.org/wiki/The_Milkmaid_(Vermeer)

HN's weird obsession with Japan continues. Daily Japanese related posts. It's extremely weird.

Maybe this is a different type of mundane costume, but I like costumes that just look like guys. When the anime initial D was popular, I would wear a white T, blue jeans, part my hair down the middle and say I'm cosplaying as Takumi Fujiwara...

Love how long each consume caption is. It could just be called Halloween costumes that take many words to explain.

They are more like "situational haikus", or the transposition to practical humor of the concept of haiku.