A homeless guy in Brazil checked into a hospital late last month after someone hit him in the face with a ROCK. And it actually turned out to be a good thing, because doctors realized he also had SKIN CANCER and removed it. But the real story is his dog . . . for over two weeks, it's been sitting outside the hospital WAITING for him. Luckily hospital staff noticed, and they've been feeding it. They also let the two visit for a few minutes the other day, and there's video of it online.