“We think, therefore we are. Therefore, we will propagate. Therefore, we will remain.”
Some droids are good for protocols. Others make excellent astromechs. A few are even good for, well, just buzzing around the floors and almost being stepped on.
Then there is IG-88. The first of the assassin droid models created in secret by Holowan Industries. IG-88 realized his skill and desire to kill the moment he was first activated. From that moment on he became one of the most feared bounty hunters in the galaxy.