Thanks I’m not alone. My friends laughed at me when I was fed up about things not being in the same place.

Samurai sometimes got stabbed there, from behind, because there was an opening in their armour

Maybe bouncer ?

I guess many newcomers just go the easy way

Something related to physics or math I think ? But it’s hard to tell a specific thing

Relaxing watching a movie, probably setting everything up to spend a nice evening. During the afternoon best would be to see people or go riding a bike, or to reward myself with some shopping.