Awesome storey JD7. Glad to hear you and your dog were unharmed and so funny that it chased off the rott.
The fighting of dogs or any other animal always gets to me. That one small percentage of people that do it ruin the species for everyone else. My friend has a pittbull that's afraid of it's own shadow. They even had to put a night light in the room for it at night because it's afraid of the dark.
As a kid I was lucky to have lived next door to a massive rotty, approx 120, he was a former security guard dog, 2 pittbulls and a king german shepherd. All these dogs were extremely friendly and playful, granted the 2 pittbulls could not be near each other unless on a leash, they hated each other for some reason. One of the pitts lived with the rotty and a little eskimo dog, the other pitt lived with a mean old cocker spaniel. That was the only dog that ever charged at me out of the collection...go figure.