Are humans born with innate knowledge that some things are deadly to smell? Or are we born with an instinct to smell things to figure out if it’s good or bad?

Curiosity. I picked apart that component that made my shoes blink. It was very difficult to get it open, but the silver liquid in it was fun. Today I think that was mercury and that I probably shouldn't have done that.

Perhaps for the same reason a kid [0] built a nuclear reactor in their backyard.

> With one experiment, he created chloroform and as the book encouraged him to sniff the chemical, he did so and was unconscious for more than an hour, according to his recollection.

[0] https://en.wikipedia.org/wiki/David_Hahn

What, you’ve never been a teenager?

This is a funny question on a forum, that's called "hacker news"...