Yeah we carefully screened him for that. Whenever we took him from the cage he was in, his sister went apeshit. We removed her and he looked on curiously but was quiet. Nothing we did seemed to make him start barking. So we took him.
He HAS barked a few times. One time he peed in his cage and barked until we let him out when he was a puppy. One time he got lonely and freaked out, but that's about it.