At the supermarket today, I parked beside a woman who let her child (about 5/6 years of age) run off while she was chatting on the phone by her car. I didn't think anything of it and was walking to join the queue when the child ran past me to the next quarantined box. She spun round and round on the spot then ran over to railings about 10 yards away and started swinging on them. The queue moved into a cordoned off part and I moved with it. The child (still at the railings) started screaming and her mother (still traipsing over from the car) shouted at her to go back in the queue. By the time the mother joined the queue she was 3 customers behind me (it was becoming quite busy) and started mouthing off that I had 'bunked' her and her daughter, that some people are just 'horrible' etc.....which I just ignored. So AIBU to not keep the space that child was meant to be saving in the queue....when she was not in the queue and that the mother was just being a CF??