The first STALKER game. Near the beginning when I had hardly any ammo.

I saw a pack of feral dogs in the distance and while they didn’t sound friendly I didn’t know whether they would be hostile or how close I could get before they would aggro. Since I had so little ammo I resolved to not take any shots unless they got close.

Well, one of them did start running towards me, but before it got that close it cut off and ran away at a 90° angle. Then another, and another did the same thing. “Maybe they’re not hostile?” I thought to myself, “Do they just run around randomly?”.

Then I realized I was being circled. Which was an extremely unnerving realization. I went from thinking about aggro ranges and AI states to being thrust into a situation that I sometimes have to worry about not falling into in real life.