luckily most dogs around here are nice and those that aren't are kept on a leash. My neighbors dog is a rescue and hates most other dogs so when they walk her she is on a leash and has a muzzle and they have both hands on the leash. This dog is total sweetie once you get to know her and adores their two YO daughter.
I am very protective of those I love human and animal alike if a dog attacked my dog I'd be grabbing the nearest blunt object and that dog would regret ever meeting my dog. Let alone attacking him.
Equestrianism; 10% luck, 20% skill, 15% concentrated power of will, 5% pleasure, 50% pain and 100% reason to remember you're absolutely insane to be riding a beast that big.