Boxer
These dogs are not that aggressive. They are strong and brutal though when necessary. The only reason why they don’t have a lot of attack records is that they tend to be really playful. They no longer have the energy to attack others later during the day. They snore really loud too. Perhaps, this is due to their playful nature. They are also really intelligent dogs and in Germany, they are developed as police dogs. Despite being tough, they are popular choices as pets in the US.