6. Labrador

After a long day at work, you go home to see your Labrador chewing on your beloved rug. That’s awful but also hilarious, especially if you already desired to replace it!

At first glance, they don’t seem like the type of troublemaker; however, we wanted to include them on the list of worst-behaved dog breeds mostly because of their behavior issues, and if they are not trained properly, they might develop some bad traits.

If you have difficulties understanding your puppy, ask for professional help, and you will have a well-trained and well-behaved dog in less than 6 months!