I have been bit by a few dogs in the past, but not my current dog which is a 9 1/2 year old Doberman Pinscher. Probably the worst time I was ever bit was when breaking up a dog fight and my leg just happened to be in the way. I still have scars from that and that was probably about 25 years ago. Other dogs I've been bit by but nothing serious was Poodle mix, a Dalmatian and a Springer Spaniel who was technically still just a puppy, but an older puppy.
Just for the record and not that you asked, my oldest Son is now caring for two Cavaliers that technically belong to his ex, but I have a feeling they'll be staying with my Son for the rest of their lives. Those two little dogs are probably a couple of t he sweetest dogs I've ever known, also this breed can also tend to have a lot of health issues. So far they've been quite healthy but that's also probably because they both came from a top notch breeder.