How to get 100% Dragon Total Destruction in Angry Birds Year of the Dragon

The latest release from Angry Birds Seasons 2012 includes the 'Year of the Dragon' levels. The 'Year of the Dragon' introduces a Dragon that works similar to the Mighty Eagle, except that this is free (already included in the purchase price). I have not tried the Mighty Eagle yet, so I can't tell exactly what the differences are.

The dragon appears by clicking the icon next to the pause button on the top left corner of the screen. What you throw looks like a red fish that makes the dragon appear. The dragon will cause massive destruction and it varies based on the location where you drop it. The more destruction, the higher dragon score you get. If you get a 100% score, you get a 'Total Destruction' fish.

I was trying to figure out a way to consistently get 100% dragon score in all levels. I could not find a general rule that will get you a 100%, but in general here are some tips that worked for me:

1. The more you destroy with the dragon, the higher score you will get. This means in general the best place to drop the fish will be somewhere in the middle, usually in the bottom next to the most artifacts in the level.
2. You don't have to destroy absolutely everything, but most everything in the level.
3. It helps to throw a few birds before throwing the fish, but I was also able to achieve 100% score by throwing the fish first without throwing any birds.

What do you get for achieving Dragon Total Destruction in all levels? Nothing, absolutely nothing, other than personal satisfaction, of course.