Not really dogs, but the owners that fail to train them well.
I have been bit by dogs doing my essential duties in the last 2 month. First was in May, she knew I was coming. Had 4 large dogs in the house and a full glass front. They were all chomping at the bit to get at me, she opened the door and they pushed her out of the way to get at me. The black mutt lunged at me and I deflected with the forearm and jacket caught the bite. It sit and growled at me while the rest of the stinking bunch rubbed all over me. Judges wife.
Friday, friend of the boss. Little white yep dog poodle bowed up at me in the yard as I approached. "Don't worry, it don't bite." It kept it up barking and as soon as I turned away the little bas turd nailed me in the calf. "Bad Doggy, you apologize to him...."
I made a whole $26 bucks on that deal.
Thank God, I have been promoted to all commercial. Dealing with the publick is about to cause a death murder kill incident.