dream i had

...So, I was in a car with five other people. They were all the same person, but with different clothes and personalities. One was quiet, one was sporty, one was crazy, and I can't remember the other two. Didn't recognize any of them. We pull into a garage between two other cars, and everyone piles out. One of these people looked horribly depressed. While everyone else left the garage to do their own thing, this guy stuck around, with a snake tattoo on his arm and a 5 o'clock shadow. He said some things I can't remember, and then his snake tattoo came off. It became an actual, living, breathing snake and started slithering at me. This thing was FAST. I ran away as fast as I could, and somehow, the snake could catch up with ease. I keep looking back to see if it's still chasing me. Eventually, the snake slithers away under something, never to be seen again. So now I'm just in this big open area. And then, out of nowhere, a big dog that looked like a rottweiler came out of nowhere and started chasing me. A lot of chasing going on in this dream. This dog was dead set on getting me. The other guys were in the area too, just hamming it up and having a good time as I flee from this dog.

This next part is why I remember this dream, and it's gruesome. One of the guys came running towards the dog and tackled it to the ground. I stop and turn around, and he just ate the entire bottomside of the dog, just letting the guts show. He then got back up and presented the dead dog to me, and said something. His face and shirt had no blood at all whatsoever. And then I woke up.

...What?