That's your tailbone — it's all that's left of our tail. And yes, it's sad and pathetic, and you can't wag it. Now, in rare cases, babies are born with what looks like a tail. But that's not ...

But after they left the pup's tail noticeably drooped. Which is just so, so sad. Related: 'Diamond in the Rough' Dog at Rural California Shelter Only Wants to Be Loved "The saddest thing I've seen ...