Scruffy has broken the skin a couple of times. Once I was tossing the ball at the same time he was going for it. We both bled a little and I learned that I had to teach Scruffy NOT to go for the ball when it was on the ground.
The second time was also an accident. I don't call those 'bites' because that was NOT his intention, but he did draw blood both times.
Longblades thanks for the info about reporting dog bites. That's something I never would have thought about.