[have a small grimace of sympathy and thorough understanding of exactly how messed up that would be, he is a doctor after all.]

Frankly it sounds like it should be much more than uncomfortable...and the different structures between a canid and a human--well, it doesn't really sound as if it should work at all.

Then again, I can call a shapeshifter a friend, and I've seen rather well what they can do, even if I haven't quite figured out how they manage it yet.