The way the guy put it was like the way people define UFOs

That's why I said living only with people of his own belief might be a reason for that. Now I don't know where this guy is from but I'm sure he has barely actually met (or talked to) an atheist. In Iran people mostly prefer not to express their religious beliefs so someone who doesn't believe in what the majority do, does only exist in theory and in theory, this person must be a horrible one, caring only about himself, always drunk and in bed with girls.