It's also an ideal place to keep an ear to the ground for anything useful as far as explaining the mechanics of this force that's behind all the arrivals. The powers that be in the place that I was previously were much more transparent about the vortex and their efforts to understand it.
In the movie, it seemed to be all about the numbers. Any more than one and they seem to egg one another on. The spawn of the main Mogwai character also seemed to have less restraint than the original. I should see if there is any way to determine the generational status of the creatures. Might be able to make their behavior (or misbehavior) a bit more predictable?