I was heading to my brother's wedding and while my wife and I were in a SC at ATL I thought it might be a nice gesture to snag a bottle of Dom to bring for the rehearsal dinner toast. Knowing that I could get one for 17.5K SMs, I asked the bartender for one and she obliged. She brought it out and was about to open it, when I stopped her and stated that I wanted to take it. She said she MUST open it at the bar, after that I could do whatever I wanted with it.
Figuring it would be bad form to show up at dinner with a pre-opened bottle of champagne, I passed.