If I could send you home, I would mate. I'm afraid that's up to the Seal though. Some people get sent home within a few days, others get stuck for years.
Sometimes. There's demons and monsters in this world. Hermione already mentioned that Lucifer is prowling around. Other times... let's just say people aren't always the kind of things that get pulled through to this dimension. We get all sorts here, from all different worlds. Some are good, some are bad. Some are human, some are not.