Keeping in mind that I breastfed my kids on subways, I am still kinda annoyed by this woman who breastfed her kid, while giving a lecture. (Her response is a scream. Really should read it.) It isn't the breast that bothers me; a bottle would also have been wrong. It's the baby in a classroom during a lecture. Even if she was bottle feeding the baby, it is not possible to give an adequate lecture, while caring for a small, sick child. It's barely possible to shower and remain human. 

The real problem is that the professor felt forced to bring her child to class, because she didn't have a backup child-care option. I never understood why universities don't have their own childcare centers, especially schools with large numbers of students majoring in education and nursing.