Umm… many of us do take a fire extinguisher everywhere we go. In our vehicles, because you really can’t fit a useful-size fire extinguisher in your pocket.
True, but you don’t have to show your license to carry an extinguisher when an leo pulls you over for speeding. 
By god, Doors, pkbites, I think we’ve defined a middle position on a gun debate, and we’re sticking to it. This is a bit of a bloody miracle.
I’m not (in NH) required to show my CCW to a leo if he just pulls me over to give me a ticket. There’s reason to mention it unless he tells me to to get out of the vehicle, or asks me about it. Which they don’t do during a routine traffic stop, even though I assume it shows up on their computer.
Here it is required. Just ask Roland Carnaby.
Not required here either.
Never met the guy but I suspect from what I know of him here I’d trust him too. For the sake of argument let’s go with me having complete confidence in him.
That said is it still wrong for me to not want him carrying a gun around my house?
FWIW I am old enough to have grown up with guns…kinda one of the things all boys did when they were young. My dad would put cans out and teach me to shoot, I went to camp and shot rifles and when older friends would take me out. Not extensive experience by any means but I have no phobia of the things. Come in carrying a big spider on your hand and you’ll see me spaz far more than you holding a gun.
So, despite trusting Airman Doors (or whoever) and despite not being phobic about guns I just do not want them in my house. I can see zero benefit and only a downside…however remote it may be. I’ll take my chances the Zombie Apocalypse may occur during my BBQ.
I think it is just simple courtesy for someone carrying a weapon to make it known to me before entering my home (some here said they will not drink alcohol while carrying but not everyone may be like that…if someone is carrying a weapon and I am serving alcohol knowing that is important). It is my home and should be something I should know. As noted elsewhere once I make a decision then any future visits should abide by that (if I said “ok” no need to announce everytime…just go with it is ok unless I say different or never again if I say it is uncool with me).
Just read the OP, don’t need to read any more.
No! It is not ethical.
If the guy who wants to carry, and make regular visits to his friend’s place, then the first time he visits, he asks if it’s OK. If not, he can decide what he wants to do. If so, then no problem.
But unknown at a friend’s place? Nope.
What happens if you’re visiting a couple, tell them you’re armed, and the man says “sure, c’mon in sport” and the woman says “no. I don’t want any guns in here?”
What if 3 adults live there, equally, 2 say it’s alright to come in armed, one says no.
As far as I am concerned if one adult says “no” that lives there then the answer is “no”. If nothing else why would the person carrying ramp up the tension when they are a guest? If one person is not cool with it then go put it in the car.
If there is no place to get rid of it in the short term that is convenient (e.g. your car trunk) then I’d say it is between the residents to sort it out. If the husband and wife are in disagreement (or whoever) then it is for them to come to a decision. You stay out of it, they’ll let you know. Although again I’d say as a guest the proper response would be for you to not want to cause trouble if it is at all avoidable. Making the Host and Hostess get in a fight over you carrying a gun has a good chance of ruining the party for everyone.
Gotta say, if you’re not willing to take the view of one of your hosts into account, then you don’t wanna be there anyway, do you. So just leave. And think about what’s important.