@Craigh:
It sure seems so. My two red/whites were both typical Basenjis, but our new little Tri Bella sure seems to have an extra evil streak. She's got the sweetest disposition you could ever hope for, but it is punctuated by unexpected acts of getting into mischief.
Here she is laying down with my wife looking like the perfect angel. Next morning while my wife left her for 2 minutes to run to the bathroom, Bella managed to mangle a pair of my wife's reading glasses. Unfortunately they weren't a $10 Wal-mart set either.
That's hilarious. I've fostered 2 Tri's, both female. The first was super sweet and spunky, not devilish at all. The second one was a hurricane coming in because of severe neglect (social, physical, etc.) but after 6 weeks she had learned to be a dog and was quite biddable, she's in the perfect home for her now.
So I'd have to say I haven't experienced the 'devil' gene
~A