We actually don't have that feature. The point isn't to hijack a user's experience. We are thinking about the best way to get out of a users way if they want to escape a tutorial. But thanks for the feedback.

This is smart. If there is anything I hate more, it's thinking to myself "get out of my way there is a good chance I can figure it out"

Well here's one reason you might consider disabling certain UI elements.

If you hit the left arrow button on the slide show at 0:12 you end up with this in the end.

http://imgur.com/a/ZqiYs

Yeah it's definitely not perfect! Our goal is to ship early to demo our progress and there are some rough edges showing. We will definitely get this cleaned up ASAP. Thanks for the screenshot.

No problem. Just something I noticed. Good luck.

If it doesn't already, you could overlay a transparent div on top of the entire body to capture all click events.

or for browsers that support css3

  *{
    pointer-events: none;
  }

Nice! I didn't know about this one. I'm still scared about taking too much control away from the user. That might be nice just to let the user know the tutorial is running and allowing them to 'quit' if they want.