A stock image to show a 'mad' dog. Yta23/iStock / Getty Images Plus "As a human who is fluent in dog, let me start by saying dogs do tell you when they are upset or uncomfortable," says Baker.

But how do you know when your pup is mad at you? And can dogs forgive you after you've upset them? How to Tell When You've Upset Your Dog Hembree is a veterinary behavior nurse at GoodPup ...