So, it's been bubbling pretty good for about 48 hours. It's finally taking it easy and bubbling at a pretty even clip now. I'm going to put on the bubbler airlock as soon as I get a chance. But here's a weird thing.
It smells like yogurt.
I'm paging through the homebrewtalk.com complete codex of "did I just ruin my beer" posts, and I'm not really seeing this one. Not yet. Ominous. Or not. I don't actually know.
Update: All these posts are like-- "yeah, you probably didn't ruin your beer. just cool your jets, newbie." So I'm done freaking out now.