My mead is in its primary Ferm, and i added some yeast energizer which promptly resulted in a violent blowout. i lost about 1/5 gallon of mead. But I have no idea if its a lost cause or not? I re-santized the airlock and got it back in place as quickly as possible. and now im getting a bubble of c02 about ever 7-9 seconds. much slower than it was previously. This is 4 days into primary.
I will note though that the bit i licked off my hand was very tasty though. and alcoholic.