I understand being underworked, in my case I do not have the tools to do my job as effectively as I could. It is not a case of desire, I want to hone my skills and do a good job, but it's difficult when you have a mad dictator for a network administrator and management who won't spend any money to get a test environment going. I am getting tired of being locked down and told to get in line. But I have tried to improve any way I can. MIT Open courseware has some good stuff.