Thanks :).
It should be possible to trade boxed characters away by organising a pickup from the entrance yard; when a pickup is organised it should be possible to have alraunes, bees and maids report for pickup as well (they'll head to the entrance yard as well).
Allowing a slow corruption if you can manage to keep a visitor pinned down does sound fun, so I'll look into adding it :).
And thanks for the bug reports, they help a lot.