Does anybody know what happens if you can't get rid of your position? Do you just wipe out? Say you are holding an Apple stock for simplicity. For whatever reason it crashes and you try to get out half way through the drop, but you can't, because nobody will buy from you. Do you just get wiped out? Is there no insurance against this? Can you lose more than is in your trading account?
People who get hammered don't get to nail.