I stumbled upon an awesome new YouTube channel for programmers - Worst Practices. Specifically, Worst Practices in Software Development. The tagline is "we've all heard enough about everyone's best practices in software development, we're here to talk about … worst practices." I've written about "best practices" for teaching before - I don't believe in them - I believe in practices that are good under certain circumstances. Maybe in the majority of circumstances but there's no silver bullet.