The Pet Collective shares a look at a variety of animals who are having a good time getting muddy. They say a tired dog is a happy dog and I think that is true. If the dog is going to become tired by playing outside in the mud and dirt then he’s going to have a lot of fun. Much like little kids who sometimes don’t want to take a bath, dogs can sometimes think staying dirty is fine. My dogs know a shower is in store when they get too dirty.