Yea I can tell that it is going to be some fun for you to play with Linux again, this thing never gets old. You have a billion ways to customize it, and of course billions of ways to mess it up too. The insanity never stops.
So true @lilacse, and another aspect I love about tinkering with VM's is the fact that you can make clones, completely mess shit up, then just refer back to the clone as a starting point. Such fun!!! haha
Just saying, you can mess up your host OS from a guest OS :) There's a way for that. Happy researching :P
Using Virtualbox? I didn't know this!