Those are my dream snakes :-)

I've heard they can be tamed, and I've seen a complete idiot handle one rather roughly without it going at him. I've read that they're easiest to handle if they have removable perches, so rather than reaching in to a habitat and trying to untangle the snake you just take out the entire perch and the snake should then move from it to you.

I'm definitely not talking from experience though, just wishful research.