Yeah, though for me it's the sound of little clicking claws on the pavement coming up behind me. One time I was out running, heard that sound, and did my normal response: I turned around fast and yelled "NO!" at the top of my lungs. It turned out to be a little doberman puppy, who stopped so suddenly he fell down and had such a woeful expression that I felt awful. I took him back to his house (how did he untie my double tied shoe laces whilst walking???) and gave him back to his person, suggesting that he could easily get run over on that road. I hope he didn't grow up to hate runners.