The depth of the game is so suprising at times.
This.
And when you follow a salmon in the river, and see it jumping up a small waterfall.
OR when you follow the headless horseman for 5 minutes non-stop riding, and actually end up somewhere you've never visited.
The game lives.
Those are called scripts.
You can drop a tomato on the ground in Riften and Mjoll and old man Snow-Shod will fight over it. I used the console to turn his aggression down, and when Mjoll reached for her battleaxe, he ran out of the Bee and Barb so fast he tore the paint off the wall. At least he lived... :shrug:
I've never seen any other NPCs fight over trash though.