Has anyone had any negative experiences while on the road doing HEDIS?

Hi All,
I just registered here on allnurses and work in quality improvement at a MCO. For the most part, my HEDIS experiences have been positive; however, every now and then I have come across staff at doctors' offices who have been rude and hostile. Anything to make our job more difficult. Just inquiring if anyone else here have had bad experiences or horror stories you'd like to share. Our HEDIS season will soon be coming to a close. I think, by the time we are done, I'll have reviewed over 1000 charts and visited about 180 offices since early March.
Looking forward to hearing from you QI nurses who do HEDIS or any other chart review project.
mmad09