Would you really call an ambulance fir (sic) a twisted ankle???
Not if I could hobble back but some people with a twisted ankle cannot put their foot to the ground, let alone walk. Hopping just exacerbates the pain! Quite how you would get back without help from the rescue services when an ambulance would be called if you couldn't walk, I don't know. There are so many things that could go wrong, experienced or not, a twisted ankle was just an example, it could be a broken ankle. Personally, I'd be inclined to shrug my shoulders and say, "Let her get on with it," but I don't think anybody but you should be berating the person who found it selfish. However, it was more the irony of the whole thread and others than a wish to label you anything at all. It just makes me chuckle.