(chuckle) Fair enough, I suppose.
Everyone who wishes to visit me is welcome in the sense that I'm not going to be rude to them.
I freely admit, though, that there's some types of visitors I don't feel comfortable and/or interested in holding a conversation with, especially if they were uninvited. As much as I admire some people's creativity, however, I prefer to employ the polite but direct approach.
Peace & Luv, Liz