I remember poking around with an NPC, clicking something that made him always have his weapon ready. Now I can't remember where I did this, and I need him to put his darn fists down

this same issue gave me a rough time. if you go to i think its ai packages then double click on the package, there will be 4 tabs and i think its the flags tab that has a check box that will toggle on weapon ready. uncheck it to have npc act normal.