Apparently, he is in desperate need of some moldy cheese, because he's flailing from side to side, staring blankly into space, and screaming "REALLY MOLDY CHEESE....YEAH, YOU WANT SOME?? SO DO I...SO DOES THE WHOLE WORLD!"

It's kind of sad to see someone who's obviously mentally deranged, but I can't help but laugh as he prevents the tourists from taking pictures of the Bob Marley mural on the side of the store downstairs.