WYSY - Please - Do NOT drink the USED vodka.
This stuff was gunk...you probably have cleaned off mild, molds, fungus, or even worse. It might give a glorious, momentary, "high" but the results could be deadly. Don't drink the USED vodka.
For what remains in the Grey-Goose bottle.... save it for guests.
You may as well of confessed to drinking from pub urinals....Don't drink.