No worries. I think my sparkley-eyed squeeness at seeing him is pretty forgiving. I think he's just gotta go around being all bastardy at people and it's all good. I'd pick up a Discworld character if it hadn't been foreveeeer since I've read them. And i know Jeremy Irons actually was Vetinari in the TV Color of Magic and didn't do a bad job at all. And he can pull off that whole aristocratic devious asshole thing well.
I have that problem too. I think when it comes to stories like that it's just easier to take them a bit at a time, or else they start bleeding together XD