Does anyone else's rabbit do this when out of the cage?

It is called a Binky, and is normal bunny behavior. It's an expression of joy, sort of a "whoopee". More info about binkies and other rabbit behavior can be found here: a href="http://www.fuzzy-rabbit.com/behaviourfaq.htm" rel="nofollow"http://www.fuzzy-rabbit.com/behaviourfaq…/a