I am hooked on a particular vodka that I've been drinking for a while now. My question is this. Can I have a flask with my own vodka and order a cup of ice and pellegrino? Will be discrete when pouring vodka on rocks. I will be at MB if location is a factor, $25-$50 BJ table and $1-$5 slots if denomination is a factor as well. Last time they gave me low end vodka and I had a hangover. Its been years since I had those.