I am looking for the original post from UNFY, but the scenario at the bottom is very confusing. Displaying your weapon in the scenario described is a show of "force" and allowable under use of force laws in Nebraska. When you pull the trigger, "deadly force" is now occurring and could be defensible in court. Personally, I could care less what a civilian/co-worker felt i.e. intimidating if I understand your scenario correctly and doubt they would care as their life and yours has just been saved.
Simply bringing a weapon (in this case a firearm) onto someone's property is not a display of force per se. Begs the question how/why would they know? If the idea or the suspicion of it is intimidating, leave and get new friends.
With regards to people KNOWING you have a firearm and/or carrying concealed, I ask why do they know and/or why would you tell them? If they are uncomfortable with my carrying, my owning a gun, my stance on firearms, etc they move from the "friend" category to the "acquaintance" category.