I usually get mixed reactions. Normally, offline, people are complete idiots who don't even bother to listen to the facts.

Like when I was at my friend's Grandpa's house during Mid-Winter Break

Arcterus: *explains most of the points commonly brought up with 9/11 conspiracy theories* So anyway, that's why I think it was a conspiracy.
Mr.Wheeler: That's outlandish?
Arcterus: Huh?
Mr.Wheeler: It's more than outlandish, it's hilarious.
Arcterus: Great, then you can counter all the points I just brought up!
Mr.Wheeler: .........It's just crazy.
Arcterus: Well I guess that just settles the whole thing doesn't it? If you're going to deny my beliefs, at least provide evidence.

NOTE:His real name is not Mr.Wheeler. I have no idea what his last name is, so I called him that.

But even on the internet, I'll meet the occasional dumbass.