Today I spent 5 hours staring at, stepping through some callback-heavy code, reading HN, browsing the web and about an hour to write, test and deploy about 20 lines of code fixing a really nasty race condition. And I'm still not completely sure things are really fixed. I might have spent even longer had it not become apparent that we have just the two options:

1. band-aid around the problem

2. complete rewrite of a large portion of the website