Are you trying to say that if threatened you wouldn't make an on the spot decision to either run or fight? If you were starving and all that stood between you and food was another person, you wouldn't compete for that food? Do you NEVER have the urge to have sex with someone you fancy? Do you never wash and put on clean clothes when there is a chance you might have to mix with your peers? These are all examples of instinctive rather learned behaviour.

It has been mentioned (both here and elsewhere) that heart disease is on the increase. This is at least in part due to a poor lifestyle of over eating and under excercise. Again a deep seated instinctive thing, from a time when food was scarce and it was a real effort to get it. When it is available we (and I don't mean anyone personally, I mean generally) eat as much as we can because on some level we are not certain when the next chance to eat will arise, and we are fundamentally lazy because we don't want to burn essential calories unnecessarily for the same reason.

My point is, we are somewhat less evolved than we like to flatter ourselves into believing, and while modern society has given us the means to surpress most of our instinctive impulses, they are never far below the surface.