Jack Russell Terrier
The Jack Russell Terrier is among the most energetic breeds of dog in the world. These dogs do not enjoy rough play, so they might feel threatened and bite when they get poked or pinched. They also tend to be protective of their space, so you will need to teach your children to respect those areas.
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Chinese Shar Pei
You might think that Shar Pei dogs are adorable thanks to those extra folds and skin but watch out! This is a breed known to suffer from a bunch of health issues. The skin folds tend to contract pathogens. Kids normally get sick when this dog does, so it can be a recipe for disaster when you have both of them in your house. These dogs also tend to behave aggressively, which makes them difficult to train.