Enjoy waiting 30 seconds for an ad to complete when you need to get to the juicy content in a YouTube video? If you don't like waiting there is a way to get around this, at least with Chrome.
Install the extension called "Skip ads on YouTube - No illegal block" from this link and ad waiting days are now over.
Now test it on a video with ads.
You'll get an ad before the video, but click on the blue play button (above), the ad will end and the main video will play. This method gives you a choice, so if you feel like being supportive and allowing the ad to play, you still can.