Open Q&A - Gallbladder Stuff

I've had a few questions about gallbladder stuff - from what surgery in Oz is like to how big are the incisions to what the heck does the gallbladder even do - so I figured I'd throw open a Q&A thread to answer any questions.

Feel free to ask anything - even stuff you might think TMI but want to know. Nothing out of bounds as long as it relates to the subject.

Cheers.