@Kananga:
Although I think he may be happier with a friend, part of me worries it'll just be an accomplice for trouble.
Multiple basenjis are definitely accomplices for trouble. :D:D:D For instance, my boy Brando is always a little devil. Many times he'll nab something he shouldn't be chewing on (for instance a remote), Ruby will see him with it, he'll drop it and she will grab it. Now normally, I would 100% trust Ruby not to touch a remote - could leave it on the sofa next to her and she would ignore it. But if Brando has it, well it has a whole new attraction for her. I can't count the number of times I've walked in the room and found Ruby with the spoils of something (usually newspaper or napkins), but know it was Brando that had grabbed it initially.
Now if Liyah (1yo) does something she shouldn't, both Ruby and Brando punish her (pin her down, yell at her)…quite funny actually. :D:D I usually just let them handle it.