I just witnessed a crash in a tesco car park. A big range rover lost control and sped into a bollard and completely messed up this other car. The bonnet of the Range Rover was crumpled up and hissing. All very scary, and very lucky that no one was walking in the way. I ran over, as did other people. I noticed no one had their phones out so I dialed 999, asked for an paramedic. Theres this lady talking to the passenger and driver. She then turns to me, starts shouting at me in front of a crowd of people "cancel the ambulance! They dont need one! I'm a doctor! You dont know what's best" I'm trying to cancel the ambulance on the phone with the operator, and this doctor is shouting at me still. She says "give it here, I'll talk to them" and snatches my phone off me. I can appreciate that it's a high stress situation and of course must have been terrifying for the couple in the car. Maybe I feel a bit emotional because I walking just metres away with my baby in her pram, but for some reason the lady shouting at me and the way she was speaking to me as really upset me. Currently sniffling in an M and S cafe. Pathetic, I'm not the victim at all, I know . Did I do the right thing in dialling emergency services? I feel like an idiot now