They're all around us, living with us. We are hardly ever aware of their existence, because they can make themselves look like us, and do most of the time; and if they can look like us, there's really no need for them to think like us, is there? People think and behave in so many cockeyed ways, anyhow. Whenever a slizzer fumbles a little in his impersonation of a human being, and comes up with a puzzling response. They aren't killers, or rampaging monsters; quite the contrary. They need us, something like the way we'd need maple trees if it came to the point where maple syrup was our only food. That's why we're in no comic-book danger of being destroyed, any more than maple trees would be, in the circumstances.
