When you get into a fight, and you expect the world to suddenly stop moving, and for an END TURN/END COMBAT panel to appear in the lower right of your vision.
Doesn't everyone get that urge?
You play too much Fallout when:
-You ask everyone you meet if their selling anything.
-You do favours for people expecting experience.
-Refer to your parent's basement as "My Vault".
-You feed stray dogs expecting them to fight loyally for you.
When you're constantly picking stuff up "just in case it comes in handy sometime," and then handing it to your friends to hold it for you until you need it.