I brewed a version of Cheesefoods vanilla cream ale on Saturday night. Fermented in a bucket with a standard airlock. It had activity by Sunday morning, so I was happy. Checked around 5 oclock or so on Sunday and all was still good. I had a fantasy draft Sunday night, so was gone all night. When I checked on it this morning (Monday), I noted a bit of beer in the airlock. So, I grabbed another airlock (santized), and as I was putting it on, I noticed the lid was not locked down, then I saw krauson all off the other side of the bucket, the fermentation popped the lid off. So, the beer was never exposed, but the lid was not locked down for a good number of hours. I cleaned it up and put a fresh sanitized airlock, and it is bubbling away again. What are my odds of infection?