Wow, you are amazingly wrong. This site give a proper example of how to use a 2 lane roundabout when driving on the right.

http://www.wsdot.wa.gov/safety/roundabouts/

No wonder there are so many accidents in Doha. Nobody knows how to use a roundabout. I was almost wiped out by a bus in Dukhan this morning. Looks like I have my answer why.