The woman already was recovering from some injury, though I did not see blood. I apologised profusely and asked if there was anything I could do. She just said she knows where we live and will probably need a tetanus jab. Then she left on her bike. I feel very ashamed. I didn't see exactly what happened as my dog was behind me. Said dog has been assessed by professional behaviourists, as we have had ishoos with other dogs, nipping not being one of them. He is a collie.