So, here's something that's been giving me some trouble.
You must steal an Agenda if the Agenda doesn't have an additional cost, right? If it does, I know you can Imp it, there's a timing window that (I think?) isn't there otherwise.
What about with Demo Run? Can you trash an agenda you'd have to score otherwise? Is it possible to do that with Imp, too? Rare you'd want to, with recursion and all, but... it'd be an easy way around Red Herrings or Strongbox, wouldn't it?