Yeah, it's a tough question to word but the only way you can do it is via something tangible or at least one that he can recall. I havent read many Umph interviews but if this is for a Canadian publication I think I would ask how their 'covers' come about, whether most are incidental or accidental but dont ask it as a close-ended question. Get my drift? If you prepare for that one, you might be able to run with 2-4 more questions.