I used to run past this house with a tiny little terrier sitting in the yard, unleashed. He would start yapping when he saw me and running after me. One time he actually bit my calf, drawing a tiny bit of blood. I stopped and yelled "HEY, YOUR SHIT LITTLE DOG JUST BIT ME!" The owner came out and scooped up his dog and I explained again that it had bitten me. The owner said "no, my little {whatever the fuck his shit dog's name was} wouldn't do that." I showed him the tiny fresh bite and he said there was no proof his dog had done that. I glowered at him and ran on.

A couple of weeks later I ran past the dog walking through a different yard about a quarter mile away. Apparently this little shit liked to just wander free and the owner probably had no clue. I was so ready to just stomp the shit out of it if it attacked me again, but it acted like it didn't even see me. Apparently there's no need to get yappy if it's not your home turf.