Kick the Empire's ass day

Kick the Empire's ass day was the name given to a specific day by the Kaminoans to the day on which they kicked the Empire's ass. It all started when Darth Vader arrived on Kamino because he needed more Clone troopers Stormtroopers. Unfortunately the Empire had a reputation for always paying their bills late, and the Kaminoans hated it when people payed their payed them late. So, the Kaminoans decided to kick the Empire's ass in stead of making another army for them.

The battle
The Kaminoans used their own clone army to attack the Imperial garrison that had landed on the planet to assist Darth Vader with the acquisition of the clones when the stormtroopers were in a restaurant.

Aftermath
After this battle the Emperor was so angry that he ordered his stormtroopers to destroy all records of the planet Kamino, the Kaminoans were once again deleted from every archive in the Galaxy.