My dog was a rescue puppy, represented as half Great Dane and half black Lab. Then he turned out to be what he is. By age 13 he’s been a great, loving, silly dog with tremendous drive and self-confidence who’s never shown any human aggression. My problem with trades people and delivery people is he wants to jump into their vehicles and drive off with them. He stays.
You’re one of the blessed ones; I’m glad for you. Most likely at his age, you won’t have trouble from him, then.