In the end of Star Wars: The Clone Wars Season 5 Episode 9 A Necessary Bond:
Kenobi: Ahsoka, it's good to see you're all safe.
Ahsoka: Yes master. We had quite an eventful mission.
Huyang: The most eventful since Master Yoda went to find his lightsaber crystal.
Younglings: Whoa! What! Tell us what happened! What happened then?
Me: Yes.. yes.. Tell us what happened!
Kenobi: I'm afraid that story will have to wait.
Me: Kenobi, you sucking backstory blocker!!! Anyway, I'll see it on SciFi.SE hoping it has been covered by EU.