Oh my! I am sorry your friend is saying such ridiculously inappropriate things. I am sure she doesn't have any idea how they bother you and as your friend she should, and as a doula, well, she's not much of a doula yet but it is more then time for her to learn these things. When similar things have come up I normally simply let a shocked look come over my face and ask "why would you say such an inappropriate thing!" like I can't believe you just said that!
And for the record, I see more problems with small babies getting malpositioned then with larger babies. Larger babies don't have the wiggle room to get their hand up by their heads etc. Have a wonderful birth!
