Allow me to put this kid's thoughts into words:
Watch me pull this cool trick in a stoic fashion - I won't even crack a smile. I hate "the man" and my parents!
Wow, I see trouble ahead, better dismount.
Oh man - that really hurt! It's okay - just need to walk it off. Walking it off... Okay... walking it off isn't helping. Let me grab my shoe and see if that returns any of my dignity... Crap - I wish I could draw enough breath to tell my buddy to turn off that stupid camera.
Honestly, can you imagine getting hit in the junk so hard that it knocks your shoe/headphones off?