It shouldn't. I can imagine no good reasonwhy a decent vet would feel threatened by some honest questions. Ifthey're not entirely forthcoming, then I would have a very hard timetrusting them. I'm a wee bit opinionated on the matter, but I'vehad more than my fair share of experience with human and animaldoctors, and reluctance to disclose is a big red flag, in my mind.
I knew I'd found a great veterinarian for our kitties, because when Icalled with a similar list of questions, before I could even get thefirst few out the receptionist said, "Let me tell you what theprocedure is like...". And then detailed how they performedspay/neuters at their hospital. I was very encouraged, because therereally isn't any reason for a vet not to want you to be informed.