One reason that I enjoy Rukia so much is her ability to be silly, and then serious in the next scene. She really plays her part well, as a comedic break. This video in particular is where she is mimic’ing the Don Kanonji laugh.

I had to share, as I enjoyed it so much that I use an avatar from it:

I hope you enjoy!

This is from episode 10 – See the full thing on Crunchyroll:

http://www.crunchyroll.com/bleach/episode-10-543591