Show Us Your Production Code — Alexander Zaytsev:

So, I hereby challenge the Ruby community: the next time you want to tell the world about the right way of doing things, start with showing your production code.
That’s right, the dreaded ‘production code’.
Don’t make up examples. Show us what you actually do.
For example, instead of using the notorious ‘create a record and send an email’ example, David could show a similar but more complex controller from Basecamp. A piece of code that actually made the team argue about the right way.