You shouldn't let your dog bite your family members.
Patty has a dog, Spot, that is known to be a bit rowdy with the family.
Patty wants the dog to play with people.
Patty trains the dog to be less aggressive, while still being playful.
Patty ignores the dog's increasing aggression, and tells them that the biting is just play.
Patty's dog and the family get along well and have many happy years together.
The dog bites one of the kids hard enough to require medical attention, and Spot must be put down.