So how common is the nightmare scenario where your Broker freezes your account while you still have open trades or prevents large withdrawals during times of market turmoil? Like what if you had a hugely profitable trade open during the week of a big market downturn, and your broker conveniently started having website / server problems and froze your account preventing you from closing out your profitable trade and making withdrawals, what exactly are your rights, if any? Any stories from…