My colleague and SVN developer Ben Sussman-Collins occasionally blogs about the social side of (mostly open source) software development. He just posted a new one that struck a chord:
http://blog.red-bean.com/sussman/?p=96
The story's main moral: submit your code for review early and often; work in a branch if you need to, but don't hide your code from review in a local repository until it's "perfect".
Let's all remember this and make sure not to drop "code bombs" on each other. :-)