Nate Robinson is short. Shaquille O'Neal is tall. The Boston Celtics have already had fun with this contrast in photo form. Now the players themselves are getting in on the act, in a locker-room dance video recorded by teammate Paul Pierce that features Halloween masks and a shirtless man being fondled by O'Neal. Video after the jump. And just a warning: the audio is NSFW, unless you work in an NBA locker room.