Also probably tailored to US law? Here in Germany you're usually not allowed to do any paid work without notifying your current employer, or at all. Also not

Also probably tailored to US law? Here in Germany you're usually not allowed to do any paid work without notifying your current employer, or at all. Also not even sure how it would work for currently-not-employed people, you can't just write a bill for 2 days of work without a company. And this is just additional to any tax problems. That said, I think I like the idea a lot more than sitting through interviews. But it's simply not feasible (here) unless you're a freelancer already and just do this as a short paid gig before starting there. (Because then you should be prepared for such a gig, anyway).