This may seem like a counter=intuitive move, but it may prove a great opportunity to enlarge your position if your already long on the Bull Flag breakout. If I'm wrong here and it keeps goings south, well the Captain is supposed to go down with the ship (he said with a grin). Seriously though it's a risky move; so don't be a sheep and blindly follow. But if your a full grown bull with a high tolerance for risk ( and a stop loss in place of course) I'll meet you on the other side.
