When I made my Ferocious last night, everything went right according to the receipe until the very end, and then I made several errors. I don't think any of them are show stoppers, but I got careless.
1) When I was hopping at the end, I was supposed to take the 2 oz of hops, split it into 5 batches, and add them at 20, 15, 10 5 and 0. But I mistakenly only made 4 groups, but still followed the 5 hopping time schedule. So I didn't have any left to toss in at 0 minutes.
2) When I was rinsing off my stir paddle after I stirred the wort I had chilling in ice, I accidently sprayed water into the wort.
3) When I finally had everything done and the bucket sealed up, when I was putting the airlock on I pushed the rubber gasket through the lid and into the bucket. So I had to open the lid, pour the wort back into the kettle, get the gasket, and do it all over again.
Hopefully neither of the last two compromised the sanitation of the wort. I had a strong yeast starter, so hopefully the yeast will get cranked up quickly and knock out any nasties that may have gotten into the wort.