romeo212000 - in defense of some of responses, perhaps your original posting wasn't worded in a way that fully described the whole situation.
If I was in your friend's shoes and a friend was at my house and I saw that he/she had a concealed weapon, I would ask them to remove it/lock it in my safe/put it in their car. If they began to explain that they had a permit, ask why I was uncomfortable, and give me a borderline lecture on inanimate objects, I would then tell them to leave immediately. My house - I don't have to justify my rules.
Now considering I have more guns than the local National Guard armory, you might find this strange. However, I have personally seen professional soldiers and LEO's do incredibly stupid things with firearms. If I didn't know your safety or handling capability, I have to assume that you are a liability - period. With my family to consider, I'm simply not taking the chance.
I don't think you came off as a bully, but perhaps a little condescending, at least the way you originally described the incident.