Avoided tests. It's one of those concepts I learned in college and is still in my mind 20 years later for some strange reason. It basically means not doing something because you assume a certain fact to be true. Like, if there was a company you wanted to work for, but didn't call them because someone told you they weren't hiring. That would be an avoided test. The crux of the lesson, of course, was to avoid avoided tests because they could be an obstacle to your success.
People like to make lists of "The Things they Want to Do", but I feel compelled today to write a list of "The Things I Didn't do."