Labrador
Labradors may be America’s most popular, but they can be difficult for an inexperienced dog owner to raise properly. Until they reach full maturity, they have a strong urge to chew and can be destructive if left on their own.
And if Labs are not trained properly, they tend to pull their owners while being walked on the leash. Labradors also shed a lot, so expect to find its hair all over your house.
Irish Wolfhound
With a heart as big as the rest of them, these tall doggos were initially bred to hunt wolves and they may have a slight inclination to be aggressive towards other animals. Because of its size, it is important to teach it good leash manners before it gets too big to handle.
Sadly, Irish Wolfhounds suffer from a number of health issues and have a very short lifespan of only five to seven years.
Newfoundland
Newfoundlands are gentle giants but they can also be the toughest dogs to own if not well trained early on, as they can easily out-muscle most owners. In addition, Newfoundlands are definitely not a good match for those who want a tidy home as they tend to slobber and also heavily shed twice a year.
Because of their size, they can be destructive without even meaning to – knocking over whatever comes in their path while just being playful.
Akita
These fascinating dogs have a powerful prey drive, Akitas were originally bred to hunt wild animals, and if not trained properly, they can become aggressive. Akitas can also be very protective of their owner, making them a potential threat to others if they aren't trained properly.
Akitas also have a reputation for being challenging when it comes to raising them.
Pug
Their charming personalities can often lead to being a little on the mischievous side but Pugs also want to please their human family, with that being said they may take much longer to be house trained.
They also detest being outside so many try to avoid going outside when it’s cold or rainy. Plus, these little critters rarely show any remorse when they have an “accident” on your floor.