What a crazy lady!! their are allot of them out their it seems! I am sorry that she upset you like that.
I once had a lady ask to hold my baby before while we were at a Fourth of July day at the city park. Mind you, he was premature by 3 months, and he was just home from spending 2 and 1/2 months in the NICU. I told her no and she was like "but he's so tiny, it's like he is not real"(he was 4lbs and 5 ounces at the time) she reached down
into his stroller and thankfully I had strapped him in. My husband went off on her for me because I was so shaken up. Why she thought I would hand a stranger my child, preemie or not, was beyond me.