Tonight I saw two dogs attack each other while they were being walked. The funny thing was that both owners dealt with the situation by shouting "Hey!" a lot rather than just separating their pets. For quite a while I watched the dogs straining at their leashes going "Bark! Bark! Bark!", while their owners stood fast shouting "Hey! Hey! Hey!"
Eventually both parties tired of the interaction and moved on.
I'm glad they were all able to come to an amicable agreement.