My opinions are my own and do not reflect the opinions of my employers at SLAC, who pretty much rock. When I talk about teaching stuff, I'm using composites of people and issues I've run across myself and know that my friends are dealing with, unless I specifically say it's a specific person. I didn't used to worry about this, but since more and more people know who I am, I just want y'all to know that I'm doing my best to blog sensitively.