3: Almost 0% Chance it's a Bug

In this episode of The Yak Shave, Sean shares the most nightmarish debugging experience he has had in a long time. rails_fast_attributes was down to one failure, which manifested itself as a test where a query was expected to run 269 times, but only ran 265 times. After testing, troubleshooting, and finding the root cause, he determined that it was actually behaving completely fine.