Very true. That was the one thing I hated when I was pregnant, and the only strange dogs I pet are the therapy animals that come into the hospital where I work.
I do not touch any woman in any situation unless or until she has let me know it's ok. People who touch a woman's hair, faces, bodies, etc without permission (especially strangers) are rude and uncouth. I am couth.
On the other hand,there are some women who say things like, "Oh, the baby just kicked, you can feel the little foot. Go ahead, put your hand right here." Skeeves me out. I don't WANT to touch the belly!