8. A dog wagging his/her tail is happyPhoto: Diamond Delight La Pooch
This happens to be a dangerous misconception that sometimes leads to dog bites. It is perfectly true that dogs often wag their tails when joyous or excited, but they have also been known to do so for entirely different reasons.
Fact: A dog’s body language makes for an intricate case study, and while tail wagging often means that a dog is happy, it can also suggest anxiety or even fear, which are veritable aggression triggers.