Where a young boy pretending to be Merlin walks up behind an even younger boy who he's never met and says, "Do you know magic? I do!" and the littler boy says "You do not!" and they shout at one another "Do!" "Do NOT!" as loudly as they can for the length of two blocks as their parents smile sheepishly at one another and pull them away from each another, trying to separate their barking, feral darlings.