The only thing I ask of anyone carrying a firearm is that they don't discharge it in my presence, unless it's at a range or in legitimate defense.
I wouldn't think of asking "permission" to carry in someone's home any more than I'd expect them to ask me "permission" to pray silently in mine, or to wear purple socks, or chew bubblegum. Of course, that's for invited guests. Random, unknown, shower-uppers, might be asked to allow me to secure their firearm or vacate the premises.
I've OC'ed (with a sports jacket removed) in five star dining establishments, I've OC'ed in blue-jeans and horse-poop covered boots in dive bars. I believe it's a man's job to behave as a gentleman and I do as such. If I'm ever asked to leave for carrying, I will. I don't believe in coarse language around ladies, so I don't need to concern myself with that. I don't believe in immoderate use of alcohol, so it's not a big deal. I also don't believe in bullying, posturing, or starting confrontations simply because I've got the "end-to-all-arguments" riding on my hip.
Be a polite, courteous gentleman, as you always should be.
But be ready to draw and kill at a moments notice, if you must.
Hope this helps.
Also, if you want to see what OC is like, get to a OC dinner, trash pickup or general hang out.