Hi I've been doing rails for a while, which was really my first introduction to ruby. I've found my self using ruby more and more and keep amazing my self about how cool it is, although I've got a few questions, or rather holes in my ruby knowledge, from rails doing a lot of stuff for you I think. 1. What does a double colon do in terms of class inheritance. ie. GameWindow < Gosu::Window ? 2. Why would you want to use nested classes? 3. Is it bad practice to define constance out of classes? 4. How/Can you delete instance variables or objects? -- Posted via http://www.ruby-forum.com/.