Chris is doing some tricks with his dog. Camera follows Brad (or Bri) as he walks up.
Horizon (heard faintly) "O.K. boy, order pizza!"
B "Hey Horizon, Training the dog?"
H "Yah. Watch this. O.K. boy, play dead."
we see the dog stair blankly back for a few seconds, as we hear a whine, and BANG! An explosion, leaving H & B Black, with nothing but bones in place of the dog.
B After a significant pause, slowly turns to look at H who is still looking at the dog, and quietly says "Impressive.".