I was out shopping in Sainsbury's with my mum this morning (Dh had a car crash last night so couldn't use his car). We took separate trolleys but went around together. DD1 (3, but tiny and doll like) was riding in my trolley. Saw something I wanted while at the bottom of an aisle so told my mum to watch the trolley while I got it. She waited at the bottom of the aisle, and being a joker said to DD "excuse me please little girl" at which point a stranger started moving my trolley away. My mum followed her and then said "oh DD where are you going?" the woman stopped and said "oh do you know her" and then ran off.
My mum was so shocked she didn't think to shout at the woman. When I was paying the woman saw us and ran off again, at which point I started to feel sick and we left the shop (am 14wks pg). After I got home my mum told me the full story and Dh says we should have reported her. I don't know whether to give benefit of doubt that she was just embarrassed so didn't think to apologise. Or whether I should have reported her.