Least favorite dog...the light, wiry, gorgeous little husky mix who came running at me at full tilt after his owner let him out of the truck. The owner wasn't quick enough with the leash. I dismounted and explained, "Hi, dog. I am a cyclist. I am not a food item. I am going to walk very slowly up this hill, and you are going to go back to your owner."
I walked up the hill, very slowly and without making eye contact. The dog ran circles around me, snapping at my tires and my feet, not listening to the owner at all. I walked all the way to the owner's truck so he could grab the dog and leash it. The owner was laughing at me for being a "scaredy cat."