You know what sucks? When you have two awesomely behaved dogs and your neighbors have two poorly behaved dogs who growl and bark at your dogs (thus spiking your dogs' aggression).
What is even better is when your two dogs are now aggressive and when you put them in a submissive they try to take it out on you and each other. I've never had my two dogs forget that I am the pack leader until tonight. Good fucking christ that can be scary. Two lean and mean German Shepards jumping and snapping at you at the same time ain't no fun.