Tangent, but I remember when I was a kid I would try to explain people that I could “smell” the “air coonditioned air” and everyone was like “what? No you can’t, it’s just air. It doesn’t smell like anything.”
I never did figure out what the smell was. I’m guessing it was some kind of chemical; it wasn’t a bad smell, though. It smelled like ice cubes (which I know, doesn’t make a lot of sense either.)
Anyway, all this to say that a lot of people have very strong senses. (And the other comments about water not being neutral are correct as well!)
I agree that the puzzle solving is a huge factor in my enjoyment of Linux, and is the same for friends of mine who hopped over. But sometimes I have to remember there are some people who despise puzzles and they are not going to have a good time.