I have a six month old Doberman Shepherd puppy. She is VERY energetic and very athletic. She can jump over a 41” high gate with ease. She’s pleasant and loves treats. She really needs to be the only pet in the house. These breeds tend to latch on to their owner. They make excellent guard dogs. She does ok with other dogs but only to play with, not live with. She does not do well with cats at all.