Well since my basement runs in the 72-75*F I decided to make a swamp cooler out of my sink. I make 10 gal batches and I can only ferment one at a time. So I pitched the yeast in one and let it go. The other 5 gal I put my lid on with airlock and hoped for the best for four days. This morning I changed out the one with yeast pitched and lone be hold. The wort waiting to ferment was already fermenting at a nice 73*F. Popped open the lid and this. Since it smelled great I'm still going to let if ferment out and mark that bucket. Clean the crap out of everything and start fresh. This is my first infection and I've been brewing for 3 1/2 years. Not as mad as I thought I would be.