Remember the book you read as a kid called Harry the Dirty Dog? In it, a dog named Harry does everything he can to avoid taking a bath. He buries his scrub brush in the garden and runs away from home. Then he does all the dirtiest things possible, like playing in a coal yard. When he gets home, he’s so dirty that his family doesn’t recognize him!

Sure, it’s a children’s book, but it’s pretty darn accurate. Dogs love to get dirty and most aren’t big fans of baths. In fact, they can get dirty in just a couple of minutes, as you know if you’ve ever left your dog unsupervised in the yard.

Sometimes, dogs get so dirty so fast that it makes you wonder how it’s even possible. We can’t solve that mystery for you, so we’ll just tell you: it’s possible. It’s completely possible.

Just take a look at these 75 photos of dogs that have or are playing in the mud. They don’t know yet they’re headed for a warm bath. What they do know is they’re having a lot of fun. And guess what? If you own a dog, you’ll probably find them looking just like this eventually.