Comment by southernplaces7

I don't see how it's much different from working at a company for any period of time even as a fully onboarded employee, aside from specific legal obligations that possibly protect your employment. In any place where firing at will is legal, they can toss you at any time for almost any pretext and claim you weren't a correct fit. It applies in general even if you're fully hired, barring some specific contract (that they might anyhow wiggle their way out of).