Zachary Quinto, His Dog, a Butcher and a Steak - Viral WTF Video

Can someone explain this Zachary Quinto WTF viral video making the rounds? Zachary Quinto of Heroes is seen walking his dog (and shortly, falling onto it), accompanied by a guy in a steak suit and a bloodied butcher. All of this madness is captured by paparazzi/on video. Am I missing something?

Sounds like the beginning of a joke: 'Quinto, a dog, a butcher and a giant steak are walking down the street…'