-Irresponsible dog owners who a) don't pick up after their pets and b) don't take any control over the animal when you're walking by with either another dog or just yourself. I was actually scratched by a dog once while walking my aunt's puppy, and the woman didn't even do anything. Seriously people, take responsibility of your animals and watch them. And please, for God sake, pick up their waste. I'm not a fan of seeing their crap on the grass/snow/sidewalk/road or whatever. Don't be lazy because if you are you shouldn't have a dog or any pet for that matter.