I would actually say some amount of hesitation could wind up being your proverbial friend and saving grace in the case of beginning a working relationship with Pazuzu in particular. I would not take an actual working of sorcery therewith lightly, myself, again not directly out of fear toward Pazuzu, but of fear toward my own potential mistakes or oversights made in the process.
I’ve not gotten any hints of warm and fuzzy feelings from this entity–and despite finding the optimistic silver lining in plague and destruction quite readily next to healing abilities–I do not think personally that you ought to expect the type of patience or potential comparative coddling found in Isis to say the least if you mess up somehow. My two cents: tread very carefully. Do your research up front and consult Pazuzu himself along the way. But I wouldn’t worry about him destroying you “just because” anymore than with Belial. Which is to say I don’t.
Otherwise, thanks for the link. I’ll introduce myself over there in a second.