30 loses in a row is 1 in a billion chance, there are reports of a little bit more but not much more since no one would have enough bankroll to sustain more than 40 loses in a row even if you start with 1 satoshi bet
So how safe would you be by using enough funds to ensure you can do 30 rolls or a little over? I hit a little over 20 losses in a row a few times back when I first got into bitcoin and was using the dice sites. I won quite a bit using martin gale but then kept going and lost so then I quit haha.