[quote=@Lady Selune]
Imagine an alien landed on Earth and we told him what humans did. What would honestly make him/her/it/tentacle go 'what the fucking fucksticks.'

We eat and drink biological and chemical weapons for fun. (Alcohol and chilli peppers.)
[/quote]

Polar bear plunge.

Thermal-shock to such an extent that it kills 99.8% of the bacteria on the average Finn.

Heck, most places humans populate are inhospitable deathtraps, yet the locals love it there.