Yes, well, I chose not to focus on the possibility that might happen. It'd make life horribly depressing if I went around expecting the world to crumble on itself at any moment.
Most of the time it does, yes. But I think that's because the show is filmed in California and this is Kansas. Why would he be anywhere near here? It doesn't always work, of course. But most of the time.
That actually is a good way to put it. And it is basically what it does, but with occasional bouts of spitting people back out into their home dimensions.